|
1
|
Mastrokalos D, Roustemis AG, Koulalis D. Limited accuracy of transtibial aiming for anatomical femoral tunnel positioning in ACL reconstruction. SICOT J 2025; 11:8. [PMID: 39927689 PMCID: PMC11809194 DOI: 10.1051/sicotj/2025002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2024] [Accepted: 01/08/2025] [Indexed: 02/11/2025] Open
Abstract
BACKGROUND Anterior cruciate ligament (ACL) rupture is a common knee injury, and with advancements in knee arthroscopy, ACL reconstruction has become common. Techniques like single-double bundle and femoral tunnel drilling via transtibial or anteromedial portal approaches are available. This study evaluates the accuracy of femoral tunnel placement via these approaches in single-bundle ACL reconstruction. MATERIALS AND METHODS Forty-three ACL reconstructions using hamstring grafts were analyzed. Initially, femoral tunnels were drilled via the anteromedial portal from 09:30 to 10:00 (14:00 to 14:30 for left knees). Tibial tunnels (mean anteroposterior angle: 63.5°, sagittal: 64.2°) were then created with the same diameter, accompanied by radiological documentation. A femoral aiming device was used to place a K-wire at the center of the femoral tunnel, recorded photographically. Tunnel diameters included 7 mm (20 cases), 7.5 mm (11 cases), 8 mm (7 cases), 8.5 mm (3 cases), and 9 mm (1 case). Two observers evaluated all radiological and photographic data, focusing on the deviation of the transtibial K-wire from the femoral tunnel center. RESULTS Of 38 evaluated cases, the transtibial K-wire was within the femoral tunnel in 11 cases (28.9%) - 7 cases with 7 mm, 2 cases each with 7.5 mm and 8 mm diameters. In 23 cases (60.5%), the K-wire was at the perimeter or outside the femoral tunnel - 11 cases with 7 mm, 8 with 7.5 mm, 4 with 8 mm, 3 with 8.5 mm, and 1 with 9 mm diameters. CONCLUSION Transtibial aiming for anatomical femoral tunnel positioning is challenging. No significant correlation was found between the transtibial deviation and the tibial tunnel diameter.
Collapse
Affiliation(s)
- Dimitrios Mastrokalos
- ATOS Klinik Heidelberg, Internationales Zentrum für Orthopädie Bismarckstraße 9-15 69115 Heidelberg Germany
- General University Hospital ATTIKO, 1st Surgical Orthopaedic Department of N.K.U.A. Rimini 1 Chaidari 12462 Greece
| | - Anastasios G. Roustemis
- General University Hospital ATTIKO, 1st Surgical Orthopaedic Department of N.K.U.A. Rimini 1 Chaidari 12462 Greece
| | - Dimitrios Koulalis
- General University Hospital ATTIKO, 1st Surgical Orthopaedic Department of N.K.U.A. Rimini 1 Chaidari 12462 Greece
| |
Collapse
|
|
2
|
Lumban‐Gaol I, Putramega D, Phatama KY, Utomo DN, Budhiparama NC. Greater return to sports after anterior cruciate ligament reconstruction combined with anterolateral ligament reconstruction compared with anterior cruciate ligament reconstruction alone: A systematic review and meta-analysis. J Exp Orthop 2025; 12:e70127. [PMID: 39764548 PMCID: PMC11702406 DOI: 10.1002/jeo2.70127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2024] [Revised: 10/26/2024] [Accepted: 11/05/2024] [Indexed: 01/28/2025] Open
Abstract
Purpose This study aimed to compare the return to sports, return to competition, Tegner score and anterior cruciate ligament-return to sports injury (ACL-RSI) scores between patients who underwent ACL reconstruction (ACLR) combined with anterolateral ligament reconstruction (ALLR) and those who underwent ACLR alone. Methods Two independent reviewers conducted a literature search in PubMed (MEDLINE), EMBASE, Google Scholar and the Cochrane Library in July 2024, followed by data extraction and quality assessment. This study followed the Preferred Reporting Items for Systematic Reviews and meta-analysis guidelines. The return to sports rate, return to competition rate, Tegner score and ACL-RSI score were compared between patients who underwent primary ACLR with ALLR and those who underwent isolated primary or revision ACLR. The methodological quality of the included studies was assessed via the Cochrane risk-of-bias tool and methodological items for nonrandomized studies. Results In total, 12,139 studies were screened, and 14 (four randomized controlled trials and 10 nonrandomized studies) studies were ultimately evaluated. Compared with isolated ACLR, ACLR combined with ALLR resulted in a higher rate of return to sports and competition. Nevertheless, no significant differences were found in the Tegner score or ACL-RSI score between the two groups. Conclusion Patients who underwent ACLR in combination with ALLR had higher rates of return to sports and competition, but their Tegner activity and ACL-RSI scores were similar to those of patients who underwent ACLR alone. This finding may assist surgeons in making decisions when treating patients undergoing ACLR, especially athletes. Level of Evidence Level III.
Collapse
Affiliation(s)
- Imelda Lumban‐Gaol
- Nicolaas Institute of Constructive Orthopaedic Research & Education Foundation for Arthroplasty & Sports Medicine at Medistra HospitalJakartaIndonesia
| | - Dananjaya Putramega
- Nicolaas Institute of Constructive Orthopaedic Research & Education Foundation for Arthroplasty & Sports Medicine at Medistra HospitalJakartaIndonesia
| | - Krisna Yuarno Phatama
- Department of Orthopaedic and Traumatology, Faculty of MedicineSaiful Anwar General HospitalUniversitas BrawijayaMalangIndonesia
| | - Dwikora Novembri Utomo
- Department of Orthopaedic and Traumatology, Faculty of MedicineUniversitas AirlanggaSurabayaIndonesia
- Department of Orthopaedic and TraumatologyDr. Soetomo General HospitalSurabayaIndonesia
| | - Nicolaas C. Budhiparama
- Nicolaas Institute of Constructive Orthopaedic Research & Education Foundation for Arthroplasty & Sports Medicine at Medistra HospitalJakartaIndonesia
- Department of Orthopaedic and Traumatology, Faculty of MedicineUniversitas AirlanggaSurabayaIndonesia
- Department of Orthopaedic and Traumatology, Faculty of MedicineUniversitas Gadjah MadaYogyakartaIndonesia
- Department of OrthopaedicsLeiden University Medical CentreLeidenThe Netherlands
| |
Collapse
|
|
3
|
Yin L, Liao D, Xie Q, Liu J, Deng B. Characteristics of the femoral tunnel of anatomical and isometric single bundle anterior cruciate ligament reconstruction: a modeling analysis based on quadrant method and anatomical landmarks. J Orthop Surg Res 2024; 19:822. [PMID: 39633412 PMCID: PMC11616337 DOI: 10.1186/s13018-024-05306-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2024] [Accepted: 11/22/2024] [Indexed: 12/07/2024] Open
Abstract
PURPOSE To investigate the anatomical features of the femoral tunnel in anatomical and isometric single-bundle ACL reconstruction. METHOD Thirty-two 3-dimensional knee models were reconstructed based on CT scan (average age: 26.5 ± 6.7 years, 18 males and 14 females, 17 left and 15 right). Multiple anatomical landmarks were identified. Virtual femoral tunnels were created at the deep and high portion of ACL footprint, close to the lateral intercondylar ridge to achieve best anatomy and isometry, simulating an anteromedial portal reconstruction. Anatomical features of the femoral tunnels were analyzed. The position of the femoral tunnel was quantified by the distance to anatomical landmarks and using quadrant methods. The spatial angles, length and outer opening of the femoral tunnels were also evaluated. RESULTS Acceptable tunnels were created in all models. The center of femoral tunnel was slightly higher than the apex of deep cartilage, near the deep one-third point across the shallow-deep dimension of the lateral femoral condyle. Using the quadrant method, the tunnel was located at 28.4% ± 2.2% and 22.2% ± 3.6%, parallel and perpendicular to the Blumensaat line, respectively. The spatial angles of the tunnel were 40°, 33.5° ± 4.1° and 38.2° ± 4.4° on the sagittal, transverse, and coronal planes, respectively. The average tunnel length was 34.8 mm ± 3.8 mm. The outer opening of the tunnels was located at the posterior one-third of the femoral metaphysis. CONCLUSION The anatomical and isometric positioning of the femoral tunnel can be achieved through anteromedial portal with satisfied tunnel characteristics. The apex of deep cartilage may be used as an anatomical reference for tunnel positioning. When drilled at appropriate orientation, favorable tunnel length, integrity and position of the outer opening can be obtained.
Collapse
Affiliation(s)
- Li Yin
- Department of Orthopaedics, General Hospital of Western Theater Command, 270 Tianhui Rd, Chengdu, Sichuan, PR China
| | - Dongfa Liao
- Department of Orthopaedics, General Hospital of Western Theater Command, 270 Tianhui Rd, Chengdu, Sichuan, PR China
| | - Qingyun Xie
- Department of Orthopaedics, General Hospital of Western Theater Command, 270 Tianhui Rd, Chengdu, Sichuan, PR China
| | - Jinbiao Liu
- Department of Orthopaedics, General Hospital of Western Theater Command, 270 Tianhui Rd, Chengdu, Sichuan, PR China
| | - Bing Deng
- Department of Orthopaedics, General Hospital of Western Theater Command, 270 Tianhui Rd, Chengdu, Sichuan, PR China.
| |
Collapse
|
|
4
|
Cheng R, Yao G, Dimitriou D, Jiang Z, Yang Y, Tsai TY. The 45° and 60° of sagittal femoral tunnel placement in anterior cruciate ligament reconstruction provide similar knee stability. Knee Surg Sports Traumatol Arthrosc 2024; 32:3031-3038. [PMID: 38973630 DOI: 10.1002/ksa.12341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 06/03/2024] [Accepted: 06/18/2024] [Indexed: 07/09/2024]
Abstract
PURPOSE The aim of the present study was to compare 45° and 60° of sagittal femoral tunnel angles in terms of anterior tibial translation (ATT), valgus angle and graft in situ force following anterior cruciate ligament reconstruction (ACLR). METHODS Ten porcine knees were subjected to the following loading conditions: (1) 89 N anterior tibial load at 35° (full extension), 60° and 90° of knee flexion and (2) 5 N m valgus tibial moment at 35° and 45° of knee flexion. ATT and graft in situ force of the intact anterior cruciate ligament (ACL) and ACLR were collected using a robotic universal force/moment sensor (UFS) testing system for (1) ACL intact, (2) ACL-deficient (ACLD) and (3) two different ACLR using different sagittal femoral tunnel angles (coronal 45°/sagittal 45° and coronal 45°/sagittal 60°). RESULTS During the anterior tibial load, the femoral tunnel angle of ACLR knees at coronal 45°/sagittal 45° and 60° had significantly higher ATT than that of the ACL-intact knees at 60° of knee flexion (p < 0.05). The femoral tunnel angle of ACLR knees at coronal 45°/sagittal 60° had significantly lower graft in situ force than that of the ACL-intact knees at 60° and 90° of knee flexion (p < 0.05). During the valgus tibial moment, the femoral tunnel angle of ACLR knees at coronal 45°/sagittal 45° and 60° had significantly lower graft in situ force than that of the ACL-intact knees at all knee flexions (p < 0.05). CONCLUSIONS The femoral tunnel angle of ACLR knees at coronal 45°/sagittal 45° provided similar ATT, valgus angle and graft in situ force to that of ACLR knees at coronal 45°/sagittal 60°. Therefore, both femoral tunnel angles could be used in ACLR, as the sagittal femoral tunnel angle does not appear to be relevant in post-operative knee stability. LEVEL OF EVIDENCE Not applicable.
Collapse
Affiliation(s)
- Rongshan Cheng
- School of Biomedical Engineering & Med-X Research Institute, Shanghai Jiao Tong University, Shanghai, China
- Engineering Research Center for Digital Medicine of the Ministry of Education, Shanghai, China
- Department of Orthopedics, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao, Tong University School of Medicine, Shanghai, China
| | - Gai Yao
- The Fifth Medical Center of PLA General Hospital, Beijing, China
| | - Dimitris Dimitriou
- Department of Orthopedics, University Hospital Balgrist, Zurich, Switzerland
| | - Ziang Jiang
- School of Biomedical Engineering & Med-X Research Institute, Shanghai Jiao Tong University, Shanghai, China
- Engineering Research Center for Digital Medicine of the Ministry of Education, Shanghai, China
- Department of Orthopedics, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao, Tong University School of Medicine, Shanghai, China
| | - Yangyang Yang
- School of Biomedical Engineering & Med-X Research Institute, Shanghai Jiao Tong University, Shanghai, China
- Engineering Research Center for Digital Medicine of the Ministry of Education, Shanghai, China
- Department of Orthopedics, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao, Tong University School of Medicine, Shanghai, China
| | - Tsung-Yuan Tsai
- School of Biomedical Engineering & Med-X Research Institute, Shanghai Jiao Tong University, Shanghai, China
- Engineering Research Center for Digital Medicine of the Ministry of Education, Shanghai, China
- Department of Orthopedics, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao, Tong University School of Medicine, Shanghai, China
| |
Collapse
|
|
5
|
Yang HY, Kim JW, Seon JK. Proximally positioned femoral grafts decrease passive anterior tibial subluxation in anterior cruciate ligament reconstruction using a posterior trans-septal portal. INTERNATIONAL ORTHOPAEDICS 2024; 48:2641-2652. [PMID: 39190104 DOI: 10.1007/s00264-024-06271-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2024] [Accepted: 08/03/2024] [Indexed: 08/28/2024]
Abstract
PURPOSE To compare the anterior and posterior trans-septal (TS) portal approaches in anterior cruciate ligament reconstruction (ACLR) by evaluating femoral tunnel positioning and passive anterior tibial subluxation (PATS). METHODS A total of 205 patients who underwent primary ACLR using the outside-in technique between March 2018 and December 2021 were retrospectively enrolled. Patients were classified into two groups based on the viewing techniques: the anterior group was treated using anteromedial or anterolateral portals (n = 155), and the TS group was treated using posterior TS portal (n = 55). The relative locations of the femoral tunnel were evaluated using the deep-shallow planes (X-axis) and superior-inferior planes (Y-axis) with the quadrant method in the lateral femoral condyle on a 3-dimensional computed tomography image. Anterior tibial subluxation for the lateral and medial compartments relative to the femoral condyles was evaluated as measured on magnetic resonance imaging. Knee laxity was assessed using the pivot-shift test and stress radiography. RESULTS In the posterior TS group, the femoral tunnel was usually located deeper on the X-axis and more superior on the Y-axis, which corresponds to a more proximal position, than in the anterior group (deeper on the X-axis and superior on the Y-axis). Moreover, the femoral tunnel locations in this group were more compactly distributed than those in the anterior group. The TS group showed significantly better reduction of postoperative PATS in the lateral compartments than the anterior group (anterior group vs. TS group: lateral compartment, 3.2 ± 3.1 vs. 4.5 ± 3.2 mm; p = .016). Significantly better results were found in the TS group for knee stability as assessed by the pivot-shift grade (p = .044); however, there were no significant differences between the two groups with respect to patient-reported outcome measures (p > .05) and other complications (p = .090). CONCLUSION Our results suggest that positioning the femoral tunnel using the posterior TS portal approach may lead to better outcomes in terms of PATS and rotational stability compared to the anterior portal approach in ACLR.
Collapse
Affiliation(s)
- Hong Yeol Yang
- Department of Orthopaedic Surgery, Chonnam National University Hwasun Hospital, College of Medicine, Chonnam National University, 322, Seoyang-ro, Hwasun, Chonnam, 58128, Republic of Korea
| | - Ji Won Kim
- Department of Orthopaedic Surgery, Chonnam National University Hwasun Hospital, College of Medicine, Chonnam National University, 322, Seoyang-ro, Hwasun, Chonnam, 58128, Republic of Korea
| | - Jong Keun Seon
- Department of Orthopaedic Surgery, Chonnam National University Hwasun Hospital, College of Medicine, Chonnam National University, 322, Seoyang-ro, Hwasun, Chonnam, 58128, Republic of Korea.
| |
Collapse
|
|
6
|
Tang J, Zhao J. Anatomic Double-Bundle Transtibial Anterior Cruciate Ligament Reconstruction With Ligament Advanced Reinforcement System. Arthrosc Tech 2024; 13:103014. [PMID: 39233793 PMCID: PMC11369952 DOI: 10.1016/j.eats.2024.103014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Accepted: 03/01/2024] [Indexed: 09/06/2024] Open
Abstract
It has been reported that anterior cruciate ligament reconstruction (ACLR) with the Ligament Advanced Reinforcement System (LARS) could obtain similar clinical outcomes to ACLR with autograft. However, in most related reports, single-bundle ACLR was performed. Given that double-bundle ACLR is more favorable than single-bundle ACLR biomechanically, it is reasonable to try double-bundle ACLR with the LARS clinically. Thus, we introduce an anatomic double-bundle transtibial ACLR technique with the LARS, in which the most critical step is to create a shallow tibial tunnel for the anteromedial bundle to further create the corresponding femoral tunnel in a transtibial manner, as well as to fix both bundles in full extension of the knee.
Collapse
Affiliation(s)
- Jin Tang
- Operating Theater, Shanghai Sixth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jinzhong Zhao
- Department of Sports Medicine, Shanghai Sixth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| |
Collapse
|
|
7
|
Legler J, Laverdiere C, Boily M, Tarchala M, Hart A, Martineau PA. Evaluating femoral graft placement using three-dimensional magnetic resonance imaging in the reconstruction of the anterior cruciate ligament via independent or transtibial drilling techniques: a retrospective cohort study. EUROPEAN JOURNAL OF ORTHOPAEDIC SURGERY & TRAUMATOLOGY : ORTHOPEDIE TRAUMATOLOGIE 2024; 34:1297-1306. [PMID: 38078954 DOI: 10.1007/s00590-023-03788-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Accepted: 11/15/2023] [Indexed: 04/02/2024]
Abstract
PURPOSE Anterior cruciate ligament (ACL) reconstruction is a common surgical procedure, yet failure still largely occurs due to nonanatomically positioned grafts. The purpose of this study was to retrospectively evaluate patients with torn ACLs before and after reconstruction via 3D MRI and thereby assess the accuracy of graft position on the femoral condyle. METHODS Forty-one patients with unilateral ACL tears were recruited. Each patient underwent 3D MRI of both knees before and after surgery. The location of the reconstructed femoral footprint relative to the patient's native footprint was compared. RESULTS Native ACL anatomical location of the native ACL had a significant impact on graft position. Native ACLs that were previously more anterior yielded grafts that were more posterior (3.70 ± 1.22 mm, P = 0.00018), and native ACL that were previously more proximal yielded grafts that were more distal (3.25 ± 1.09 mm, P = 0.0042). Surgeons using an independent drilling method positioned 76.2% posteriorly relative to the native location, with a mean 0.1 ± 2.8 mm proximal (P = 0.8362) and 1.8 ± 3.0 mm posterior (P = 0.0165). Surgeons using a transtibial method positioned 75% proximal relative to the native location, with a mean 2.2 ± 3.0 mm proximal (P = 0.0042) and 0.2 ± 2.6 mm posterior (P = 0.8007). These two techniques showed a significant difference in magnitude in the distal-proximal axis (P = 0.0332). CONCLUSION The femoral footprint position differed between the native and reconstructed ACLs, suggesting that ACL reconstructions are not accurate. Rather, they are converging to a normative reference point that is neither anatomical nor isometric.
Collapse
Affiliation(s)
- Jack Legler
- Faculty of Medicine and Health Sciences, McGill University, Montreal, Canada.
| | - Carl Laverdiere
- Department of Orthopedic Surgery, McGill University Health Centre, Montreal, Canada
| | - Mathieu Boily
- Department of Diagnostic Radiology, McGill University Health Centre, Montreal, Canada
| | | | - Adam Hart
- Department of Orthopedic Surgery, McGill University Health Centre, Montreal, Canada
| | - Paul A Martineau
- Department of Orthopedic Surgery, McGill University Health Centre, Montreal, Canada
| |
Collapse
|
|
8
|
Zhang L, Lin J, Zhao X, Liu M, Hou Y, Zhang Y, Zhao J, Wang S. Robotic-assisted anatomic anterior cruciate ligament reconstruction: a comparative analysis of modified transtibial and anteromedial portal techniques in cadaveric knees. Front Bioeng Biotechnol 2024; 12:1360560. [PMID: 38511128 PMCID: PMC10953503 DOI: 10.3389/fbioe.2024.1360560] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Accepted: 02/07/2024] [Indexed: 03/22/2024] Open
Abstract
Introduction: This study employed surgical robot to perform anatomic single-bundle reconstruction using the modified transtibial (TT) technique and anteromedial (AM) portal technique. The purpose was to directly compare tunnel and graft characteristics of the two techniques. Methods: Eight cadaveric knees without ligament injury were used in the study. The modified TT and AM portal technique were both conducted under surgical robotic system. Postoperative data acquisition of the tunnel and graft characteristics included tibial tunnel position, tunnel angle, tunnel length and femoral tunnel-graft angle. Results: The mean tibial tunnel length of the modified TT technique was significantly shorter than in the AM portal technique (p < 0.001). The mean length of the femoral tunnel was significantly longer for the modified TT technique than for the AM portal technique (p < 0.001). The mean coronal angle of the tibial tunnel was significantly lower for the modified TT technique than for the AM portal technique (p < 0.001). The mean coronal angle of the femoral tunnel was significantly lower for the AM portal technique than for the modified TT technique (p < 0.001). The AM portal technique resulted in a graft bending angle that was significantly more angulated in the coronal (p < 0.001) and the sagittal planes (p < 0.001) compared with the modified TT technique. Discussion: Comparison of the preoperative planning and postoperative femoral tunnel positions showed that the mean difference of the tunnel position was 1.8 ± 0.4 mm. It suggested that the surgical navigation robot could make predictable tunnel position with high accuracy. The findings may support that the modified TT technique has benefits on femoral tunnel length and obliquity compared with AM portal technique. The modified TT technique showed a larger femoral tunnel angle in the coronal plane than the AM portal technique. Compared with the modified TT technique, the more horizontal trajectory of the femoral tunnel in the AM portal technique creates a shorter femoral tunnel length and a more acute graft bending angle.
Collapse
Affiliation(s)
- Ling Zhang
- School of Exercise and Health, Shanghai University of Sport, Shanghai, China
| | - Jinpeng Lin
- Department of Orthopaedics, Guangdong Provincial Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Xuan Zhao
- School of Exercise and Health, Shanghai University of Sport, Shanghai, China
| | - Mingwei Liu
- School of Exercise and Health, Shanghai University of Sport, Shanghai, China
| | - Yao Hou
- Shanghai Droidsurg Medical Technology Co., Ltd., Shanghai, China
| | - Yu Zhang
- Department of Orthopaedics, Guangdong Provincial Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Jinzhong Zhao
- Department of Sports Medicine, Shanghai Sixth People’s Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Shaobai Wang
- School of Exercise and Health, Shanghai University of Sport, Shanghai, China
| |
Collapse
|
|
9
|
Wang X, Wang D, Zhang C, Zhang K, Du C, Shi H. Study on the use of 3D printed guides in the individualized reconstruction of the anterior cruciate ligament. BMC Musculoskelet Disord 2024; 25:126. [PMID: 38336676 PMCID: PMC10854030 DOI: 10.1186/s12891-024-07234-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 01/26/2024] [Indexed: 02/12/2024] Open
Abstract
OBJECTIVE Evaluation of the accuracy and effectiveness of 3D printed guides to assist femoral tunnel preparation in individualised reconstruction of the anterior cruciate ligament. METHODS Sixty patients who attended the Affiliated Hospital of Binzhou Medical College for autologous hamstring single bundle reconstruction of the anterior cruciate ligament from October 2018 to October 2020 were selected and randomly divided into two groups, including 31 cases in the 3D printing group (14 males and 17 females, mean age 41.94 ± 10.15 years) and 29 cases in the control group (13 males and 16 females, mean age 37.76 ± 10.34 years). Patients in both groups were assessed for intraoperative femoral tunnel accuracy, the number of intraoperative positioning and the time taken to prepare the femoral tunnel, the length of the anteromedial approach incision, the pre-planned bone tunnel length and intraoperative bone tunnel length in the 3D printed group, IKDC score and Lysholm score preoperatively and at 3, 6 and 12 months postoperatively, the Lachman、pivot-shift test preoperatively and at 6 months postoperatively, gait analysis to assess internal and external rotation in flexion of the knee at 12 months postoperatively and postoperative complications in both groups. RESULTS There was no statistical difference in functional knee scores and anteromedial approach incision length between the 3D printed and control groups (p > 0.05), while there was a statistical difference in the accuracy of tunnel positioning, the time taken to prepare the femoral bone tunnel and the degree of external rotation of the knee in flexion between the two groups (p < 0.05). There was no statistical difference between the preoperative planning of the bone tunnel length and the intraoperative bone tunnel length (p > 0.05). COMPLICATIONS One case in the 3D printing group developed intermuscular vein thrombosis in the affected lower limb after surgery, which disappeared after treatment, while three cases in the control group developed intermuscular vein thrombosis in the affected lower limb. No complications such as bone tunnel rupture, deep vein thrombosis in the lower limb and infection occurred in either group. CONCLUSION 3D printed guides assisted with individualized ACL reconstruction may improve the accuracy of femoral tunnel positioning, which is safe and effective, while reducing the operative time and the number of intraoperative positioning, without increasing the length of incision, and may obtain higher functional scores and rotational stability of the knee joint, which is in line with the concept of individualized ACL reconstruction.
Collapse
Affiliation(s)
- Xin Wang
- Department of Bone, Nanyang Central Hospital, Henan, China
| | - Dening Wang
- Department of Bone and Joint, Binzhou Medical University Hospital, Shandong, China
| | - Chenchen Zhang
- Department of Bone and Joint, Binzhou Medical University Hospital, Shandong, China
| | - Kefan Zhang
- Department of Bone and Joint, Binzhou Medical University Hospital, Shandong, China
| | - Changling Du
- Department of Bone and Joint, Binzhou Medical University Hospital, Shandong, China
| | - Hui Shi
- Department of Bone and Joint, Binzhou Medical University Hospital, Shandong, China.
| |
Collapse
|
|
10
|
Gabr A, Khan M, Kini SG, Haddad F. Anteromedial Portal versus Transtibial Drilling Techniques for Femoral Tunnel Placement in Arthroscopic Anterior Cruciate Ligament Reconstruction: Radiographic Evaluation and Functional Outcomes at 2 Years Follow-Up. J Knee Surg 2023; 36:1309-1315. [PMID: 36075229 DOI: 10.1055/s-0042-1755358] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The aim of this study was to compare the functional and radiographic outcomes of arthroscopic single-bundle anterior cruciate ligament reconstruction (ACLR) using either the anteromedial (AM) portal technique or transtibial (TT) technique. We identified 404 patients who underwent arthroscopic ACLR by a single surgeon between January 2006 and December 2016 at our institution. The TT portal was utilized in femoral tunnel drilling in 202 patients (TT group) while the AM portal was used in 202 patients (AM group). The mean postoperative follow-up duration was 26 months (range: 24-33 months). Postoperative radiographic femoral and tibial tunnel positions were assessed by two independent observers. Functional outcomes were evaluated with Tegner, Lysholm, and Knee Injury and Osteoarthritis Outcome score (KOOS) scores. On the anteroposterior plain radiographs, the mean femoral tunnel position relative to the lateral femoral condyle was 46.8% for the AM group versus 48.6% in the TT group, respectively (p=0.003). The mean graft inclination angle was 31.9° and 22° in the AM and TT groups, respectively (p<0.0001). On the lateral radiographs, the mean femoral tunnel placement across Blumensaat's line in relation to the anterior femoral cortex was 84% in the AM group while it was 78% in the TT group (p<0.0001). At 2 years postoperatively, there were no significant differences in the mean Tegner, Lysholm, and KOOS scores between the two patient groups. The graft failure rate at 2 years follow-up was 4.5% (n=9) in the AM group while it was 2.5% (n=5) in the TT group (p=0.2). Femoral tunnel placement was more anatomical with the AM portal technique compared with the TT technique. However, there was no significant difference in postoperative functional outcomes between the two patient groups. The AM portal technique appears to have a higher graft failure rate. This might be attributed to increased graft loading in an anatomical position.
Collapse
Affiliation(s)
- Ayman Gabr
- Department of Orthopaedics, The University College of London Hospitals NHS Trust, London, United Kingdom
| | - Mohsin Khan
- Department of Orthopaedics, The University College of London Hospitals NHS Trust, London, United Kingdom
| | - Sunil G Kini
- Department of Orthopaedics, The University College of London Hospitals NHS Trust, London, United Kingdom
| | - Fares Haddad
- Department of Orthopaedics, The University College of London Hospitals NHS Trust, London, United Kingdom
| |
Collapse
|
|
11
|
Ohji S, Aizawa J, Hirohata K, Ohmi T, Mitomo S, Koga H, Yagishita K. Kinesiophobia Is Negatively Associated With Psychological Readiness to Return to Sport in Patients Awaiting Anterior Cruciate Ligament Reconstruction. Arthroscopy 2023; 39:2048-2055. [PMID: 36828154 DOI: 10.1016/j.arthro.2023.02.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 01/31/2023] [Accepted: 02/07/2023] [Indexed: 02/26/2023]
Abstract
PURPOSE To identify the factors associated with anterior cruciate ligament return to sport after injury (ACL-RSI) scores in patients awaiting ACL reconstruction (ACLR). METHODS This was a retrospective cross-sectional observational study conducted at a single clinical center. We recruited patients scheduled for primary ACLR, aged 16-45 years, and with modified Tegner activity scale scores ≥5 before ACL injury. The main outcome was psychological readiness to return to sport (RTS), as measured using the ACL-RSI scale. Participants' personal and injury-related information were obtained, and their psychological status (Tampa Scale for Kinesiophobia [TSK] and athletic identity measurement scale) and knee functions (effusion, range of motion, joint stability, and knee flexion angle during a single-leg squat) were examined. All variables were assessed the day before the surgery. RESULTS A total of 105 patients (median [interquartile range]: age, 20.0 [9.0] years; body mass index, 22.8 [4.3] kg/m2; days from injury to surgery, 63.0 [65.0] days; 44% female) were enrolled. Univariate analysis indicated that only the TSK score was associated with the ACL-RSI scores (r = -0.305; P = .02). Multiple regression analysis of factors, including sex, preinjury Tegner activity scale score, and days from injury to surgery, further showed that only the TSK score was associated with the ACL-RSI scores (P = .002; 95% confidence interval -1.738 to -0.394). CONCLUSIONS In patients awaiting ACLR, kinesiophobia was moderately negatively associated with psychological readiness to RTS, while other factors were not. LEVEL OF EVIDENCE Level III, retrospective cross-sectional observational study.
Collapse
Affiliation(s)
- Shunsuke Ohji
- Clinical Center for Sports Medicine and Sports Dentistry, Tokyo Medical and Dental University, Tokyo, Japan.
| | - Junya Aizawa
- Department of Physical Therapy, Juntendo University, Tokyo, Japan
| | - Kenji Hirohata
- Clinical Center for Sports Medicine and Sports Dentistry, Tokyo Medical and Dental University, Tokyo, Japan
| | - Takehiro Ohmi
- Clinical Center for Sports Medicine and Sports Dentistry, Tokyo Medical and Dental University, Tokyo, Japan
| | - Sho Mitomo
- Clinical Center for Sports Medicine and Sports Dentistry, Tokyo Medical and Dental University, Tokyo, Japan
| | - Hideyuki Koga
- Department of Joint Surgery and Sports Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Kazuyoshi Yagishita
- Clinical Center for Sports Medicine and Sports Dentistry, Tokyo Medical and Dental University, Tokyo, Japan
| |
Collapse
|
|
12
|
Mallinos A, Jones K, Davis B. 3D assessment of graft malposition after ACL reconstruction: Comparison of native and 11o'clock ligament orientations. Knee 2023; 43:70-80. [PMID: 37285784 DOI: 10.1016/j.knee.2023.05.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 02/15/2023] [Accepted: 05/11/2023] [Indexed: 06/09/2023]
Abstract
BACKGROUND Femoral tunnel malposition makes up the majority of technical failures for ACL reconstructive surgery. The goal of this study was to develop adolescent knee models that accurately predict anterior tibial translation when undergoing a Lachman and pivot shift test with the ACL in the 11o'clock femoral malposition (Level of Evidence: IV). METHODS FEBio was used to build 22 subject-specific tibiofemoral joint finite element representations. To simulate the two clinical tests, the models were subject to loading and boundary conditions established in the literature. Clinical, historical control data were used to validate the predicted anterior tibial translations. RESULTS A 95% confidence interval showed that with the ACL in the 11o'clock malposition, the simulated Lachman and pivot shift tests produced anterior tibial translations that were not statistically different from the in vivo data. The 11o'clock finite element knee models resulted in greater anterior displacement than those with the native (approximately 10o'clock) ACL position. The difference in anterior tibial translation between the native and 11o'clock ACL orientations was statistically significant. CONCLUSION Clinically, by understanding the impact that ACL orientation has in anterior tibial displacement biomechanics, surgical interventions can be improved to prevent technical errors from occurring. The integration of this methodology into surgical practice not only allows for anatomical visualization prior to surgery, but also creates the opportunity to optimize graft placement, thus improving post-surgical outcomes.
Collapse
Affiliation(s)
- Alexandria Mallinos
- Department of Chemical and Biomedical Engineering, Cleveland State University, Cleveland, Ohio, USA.
| | - Kerwyn Jones
- Department of Orthopedics, Akron Children's Hospital, Akron, Ohio, USA
| | - Brian Davis
- Department of Chemical and Biomedical Engineering, Cleveland State University, Cleveland, Ohio, USA; Department of Mechanical Engineering, Cleveland State University, Cleveland, Ohio, USA
| |
Collapse
|
|
13
|
Khatri NP, Bharali I, Khan I, Borgohain GS. Arthroscopic Single-Bundle Anterior Cruciate Ligament Reconstruction Using the Quadrupled Hamstring Tendon Graft: A Single-Institution Experience From North-Eastern India. Cureus 2023; 15:e40547. [PMID: 37465795 PMCID: PMC10350651 DOI: 10.7759/cureus.40547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/16/2023] [Indexed: 07/20/2023] Open
Abstract
Background There is a lack of literature regarding the arthroscopic approach to a single-bundle anterior cruciate ligament (ACL) reconstruction using the quadrupled hamstring tendon graft in the north-eastern Indian population. Methodology A prospective, single-center study was planned for patients with ACL tears according to the eligibility criteria and with a defined surgical protocol. Patients were followed up from the preoperative period for at least one year, and knee function was evaluated using the International Knee Documentation Committee (IKDC) subjective knee score and the Lysholm knee score. Results A total of 29 patients were followed up for a mean of 14.6 months (12-22 months). The mean age of patients was 26.83 ± 7.50 years, with a male:female ratio of 4.8:1 and almost equal involvement of both knees. There was statistically significant improvement (p<0.001) in results in the Lachman test, anterior drawer test, pivot shift test, IKDC score, and Lysholm score. No intraoperative or postoperative complications were found in the present study. Discussion The study shows that arthroscopic anatomical single-bundle ACL reconstruction using quadrupled hamstring tendon grafts is a minimally invasive, safe, and effective procedure that provides anteroposterior and rotational stability and good to excellent functional outcomes.
Collapse
Affiliation(s)
| | | | - Imran Khan
- Orthopaedics, Down Town Hospital, Guwahati, IND
| | | |
Collapse
|
|
14
|
Lording TD. Review of Cha et al. (2005) on "Arthroscopic Double Bundle Anterior Cruciate Ligament Reconstruction: An Anatomical Approach". J ISAKOS 2023; 8:140-144. [PMID: 36924827 DOI: 10.1016/j.jisako.2023.02.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 01/20/2023] [Accepted: 02/16/2023] [Indexed: 03/17/2023]
Abstract
This classic discusses the original publication 'Arthroscopic double-bundle anterior cruciate ligament reconstruction (ACL): An anatomical approach', the first detailed description of the surgical technique popularised by Dr Freddie Fu. The technique, in which the anteromedial and posterolateral bundles of the ACL are reconstructed individually using two grafts with independent bone tunnels, was designed to more closely recreate the function of the native ACL by more closely reproducing the functional anatomy. This reconstruction was biomechanically superior to single-bundle reconstruction, particularly with regards to rotational control, leading to great interest from ACL surgeons around the world. Clinical superiority was more difficult to demonstrate; however, and the technical difficulty of the procedure has limited its use. Nevertheless, the pursuit of improved patient outcomes through attention to functional anatomical detail continues. 'Recreating the functional anatomy of the intact ACL remains the cornerstone of ACL reconstruction'.
Collapse
Affiliation(s)
- Timothy D Lording
- Melbourne Orthopaedic Group, Windsor, 3181, Australia; Monash University, Melbourne, 3800, Australia.
| |
Collapse
|
|
15
|
İPEK D, DÜNDAR A. Publication trends and global productivity about the anterior cruciate ligament: a bibliometric analysis between 1980-2021. JOURNAL OF HEALTH SCIENCES AND MEDICINE 2023. [DOI: 10.32322/jhsm.1192190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/08/2023] Open
Abstract
Aim: Due to anatomic, biomechanical, kinematic, biological and clinical data obtained as a result of many studies related to treatment and rehabilitation of injuries to the anterior cruciate ligament (ACL), among the most studied anatomic structures in the human body, the literature is continuously being updated and improved. In this study, the aim was to holistically analyze scientific articles about the ACL published between 1980 and 2021 using a variety of statistical methods.
Material and Method: Articles published from 1980 to 2021 about the ACL were obtained from the Web of Science (WoS) database and analyzed using statistical methods and bibliometric approaches. To identify trend topics and global cooperation, and to complete citation analysis, network visualization maps were used. The exponential smoothing predictor was used to predict the number of articles that will be published in the next 5 years. Spearman’s correlation coefficient was used for correlation research.
Results: A total of 11,077 publications were identified. Of these publications, 9101 (82.1%) were articles. The top 3 countries contributing most to the literature were the USA (3894, 42.7%), Japan (879, 9.6%) and Germany (616, 6.7%). The top 3 active organizations were Pennsylvania Commonwealth System of Higher Education (n=468), University of Pittsburgh (440), and University of California system (279). The top 3 journals publishing most articles were the American Journal of Sports Medicine (n=1614), Knee Surgery Sports Traumatology Arthroscopy (1418), and Arthroscopy: The Journal of Arthroscopic and Related Surgery (915). The most effective journal according to mean number of citations per article was the Journal of Bone and Joint Surgery (average citation per document: 80.7). The most active author was Freddie H. Fu (n=278, from University of Pittsburgh).
Conclusion: In this comprehensive bibliometric research about the topic of ACL, with a trend toward increasing publication numbers in recent years, the summary information for 9101 articles published between 1980 and 2021 was shared. According to analysis results to determine trend topics, the keywords studied in recent years include return to sport, ACL injury, anterolateral ligament, pivot shift, quadriceps strength, KOOS, ACL tear, ACL repair, meniscal repair, knee ligaments, tibial slope, posterior tibial slope, return to play, adolescent, graft failure and lateral meniscus.
Collapse
Affiliation(s)
- Deniz İPEK
- hitit üniversitesi erol olçok eğitim ve araştırma
| | | |
Collapse
|
|
16
|
Vijayan S, Kyalakond H, Kulkarni MS, Aroor MN, Shetty S, Bhat V, Rao SK. Clinical outcome of anterior cruciate ligament reconstruction with modified transtibial and anteromedial portal. Musculoskelet Surg 2023; 107:37-45. [PMID: 34389922 PMCID: PMC10020253 DOI: 10.1007/s12306-021-00727-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Accepted: 08/04/2021] [Indexed: 10/20/2022]
Abstract
Arthroscopic ACL reconstruction is the current standard care of treatment for anterior cruciate ligament (ACL) injuries. Modified transtibial (mTT) and anteromedial portal (AMP) techniques aim at the anatomical placement of femoral tunnel. Controversy existed in the literature with regard to the outcome of these techniques. Hence, we designed a retrospective comparative study to analyse the clinical and functional outcomes of mTT and AMP techniques. We hypothesized that there would be no difference between the clinical and functional outcomes in mTT and AMP techniques. This retrospective observational study was conducted in consecutive patients who underwent arthroscopic ACL reconstruction using semitendinosus-gracilis (STG) quadrupled graft in our tertiary care centre with a minimum follow-up of two years. Out of 69 patients, 37 had undergone ACL reconstruction by mTT technique and remaining by AMP technique. All the patients were assessed clinically by anterior drawer, Lachman's, pivot shift and single-legged hop test. Lysholm Knee Scoring Scale and International Knee Documentation Committee (IKDC) subjective knee evaluation score were used for the functional status. Knee instability was assessed objectively by KT-1000 arthrometer. There was no statistically significant difference in baseline demographic characteristics between mTT and AMP groups. At the end of 2 years, no statistically significant difference was noted in the anterior drawer and Lachman's test. Though not significant, IKDC scores and Lysholm's scores showed a better outcome in the AMP group when compared to the mTT group. AMP group showed significantly better outcome with KT-1000 arthrometer. Based on the results obtained, we presume that overall both mTT and AMP have similar functional outcome. However, as AMP technique offers significantly improved subjective rotational stability on pivot shift test, better hop limb symmetry index and KT 1000 readings compared to mTT, we suggest AMP over mTT.
Collapse
Affiliation(s)
- S. Vijayan
- grid.465547.10000 0004 1765 924XDepartment of Orthopedics, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, Udupi, Karnataka 576104 India
| | - H. Kyalakond
- grid.496653.b0000 0004 1805 6782Department of Orthopedics, BVVS S Nijalingappa Medical College and HSK Hospital and Research Centre, Navanagar, Bagalkot, Karnataka 587103 India
| | - M. S. Kulkarni
- grid.465547.10000 0004 1765 924XDepartment of Orthopedics, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, Udupi, Karnataka 576104 India
| | - M. N. Aroor
- grid.465547.10000 0004 1765 924XDepartment of Orthopedics, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, Udupi, Karnataka 576104 India
| | - S. Shetty
- grid.465547.10000 0004 1765 924XDepartment of Orthopedics, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, Udupi, Karnataka 576104 India
| | - V. Bhat
- grid.411639.80000 0001 0571 5193Department of Physiotherapy, Manipal College of Health Professions, Manipal Academy of Higher Education, Manipal, Karnataka 576104 India
| | - S. K. Rao
- grid.465547.10000 0004 1765 924XDepartment of Orthopedics, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, Udupi, Karnataka 576104 India
| |
Collapse
|
|
17
|
Borque KA, Laughlin MS, Pinheiro VH, Jones M, Williams A. Rebranding the 'anatomic' ACL reconstruction: Current concepts. J ISAKOS 2023; 8:23-28. [PMID: 36435433 DOI: 10.1016/j.jisako.2022.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 10/03/2022] [Accepted: 11/11/2022] [Indexed: 11/25/2022]
Abstract
The anterior cruciate ligament (ACL) is a complex ribbon-like structure, which is approximately 3.5 times larger at the tibial and femoral insertions than at the midpoint. Accordingly, it is impossible to recreate with a single cylindrical graft. However, this has not stopped surgeons from using the term "anatomic" to describe multiple ACL reconstruction techniques inserting at a number of different locations within the original ACL footprint, causing confusion. The term "anatomic" should be discarded and replaced by an anatomic description of the tunnel placements on the tibia and femur. Current ACL reconstruction techniques cite anatomical studies that identified "direct and indirect fibres" of the ACL. The "direct fibres" bear 85-95% of the load and provide the main resistance to both anterior tibial translation and internal rotation/pivot shift. On the femur, these fibres insert in a line just posterior to the intercondylar ridge and comprise the portion of the ACL that surgeons should strive to restore. Placement of the graft just posterior to the intercondylar ridge creates a line of placement options from the anteromedial bundle to the "central" position and finally to the posterolateral bundle position. The authors prefer placing the femoral tunnel in the isometric anteromedial position and addressing a high-grade pivot shift at the IT-band with a lateral extra-articular tenodesis. As with the femoral tunnel, the native ACL footprint on the tibia is much larger than the ACL graft and thus can be placed in multiple "anatomic" locations. The authors prefer placement of the tibial tunnel in the anterior most position of the native footprint that does not cause impingement in the femoral notch. Additional research is needed to determine the ideal tunnel positions on the femur and tibia and validating the technique with patient outcomes. However, this cannot be accomplished without describing tunnel placement with specific anatomical locations so other surgeons can replicate the technique.
Collapse
Affiliation(s)
- Kyle A Borque
- Houston Methodist Hospital, Houston, TX, 77479, USA.
| | | | | | - Mary Jones
- Fortius Clinic, FIFA Medical Centre of Excellence, London, W1H 6EQ, UK
| | - Andy Williams
- Fortius Clinic, FIFA Medical Centre of Excellence, London, W1H 6EQ, UK
| |
Collapse
|
|
18
|
Dimitriou D, Cheng R, Yang Y, Helmy N, Tsai TY. Influence of the Anteromedial Portal and Transtibial Drilling Technique on Femoral Tunnel Lengths in ACL Reconstruction: Results Using an MRI-Based Model. Orthop J Sports Med 2022; 10:23259671221096417. [PMID: 35651481 PMCID: PMC9149612 DOI: 10.1177/23259671221096417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 02/25/2022] [Indexed: 11/25/2022] Open
Abstract
Background: In anatomic anterior cruciate ligament (ACL) reconstruction, graft placement
through the anteromedial (AM) portal technique requires more horizontal
drilling of the femoral tunnel as compared with the transtibial (TT)
technique, which may lead to a shorter femoral tunnel and affect
graft-to-bone healing. The effect of coronal and sagittal femoral tunnel
obliquity angle on femoral tunnel length has not been investigated. Purpose: To compare the length of the femoral tunnels created with the TT technique
versus the AM portal technique at different coronal and sagittal obliquity
angles using the native femoral ACL center as the starting point of the
femoral tunnel. The authors also assessed sex-based differences in tunnel
lengths. Study Design: Descriptive laboratory study. Methods: Magnetic resonance imaging scans of 95 knees with an ACL rupture (55 men, 40
women; mean age, 26 years [range, 16-45 years]) were used to create
3-dimensional models of the femur. The femoral tunnel was simulated on each
model using the TT and AM portal techniques; for the latter, several coronal
and sagittal obliquity angles were simulated (coronal, 30°, 45°, and 60°;
sagittal, 45° and 60°), representing the 10:00, 10:30, and 11:00 clockface
positions for the right knee. The length of the femoral tunnel was compared
between the techniques and between male and female patients. Results: The mean ± SD femoral tunnel length with the TT technique was 40.0 ± 6.8 mm.
A significantly shorter tunnel was created with the AM portal technique at
30° coronal/45° sagittal (35.5 ± 3.8 mm), whereas a longer tunnel was
created at 60° coronal/60° sagittal (53.3 ± 5.3 mm; P <
.05 for both). The femoral tunnel created with the AM portal technique at
45° coronal/45° sagittal (40.7 ± 4.8 mm) created a similar tunnel length as
the TT technique. For all techniques, the femoral tunnel was significantly
shorter in female patients than male patients. Conclusion: The coronal and sagittal obliquity angles of the femoral tunnel in ACL
reconstruction can significantly affect its length. The femoral tunnel
created with the AM portal technique at 45° coronal/45° sagittal was similar
to that created with the TT technique. Clinical Relevance: Surgeons should be aware of the femoral tunnel shortening with lower coronal
obliquity angles, especially in female patients.
Collapse
Affiliation(s)
- Dimitris Dimitriou
- School of Biomedical Engineering and Med-X Research Institute, Shanghai Jiao Tong University, Shanghai, China
- Department of Orthopedics, Bürgerspital Solothurn, Solothurn, Switzerland
- Department of Orthopedics, Balgrist University Hospital, Zürich, Switzerland
| | - Rongshan Cheng
- School of Biomedical Engineering and Med-X Research Institute, Shanghai Jiao Tong University, Shanghai, China
- Engineering Research Center of Digital Medicine and Clinical Translation, Ministry of Education, Shanghai, China
- Shanghai Key Laboratory of Orthopaedic Implants and Clinical Translation R&D Center of 3D Printing Technology, Department of Orthopaedic Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yangyang Yang
- School of Biomedical Engineering and Med-X Research Institute, Shanghai Jiao Tong University, Shanghai, China
- Engineering Research Center of Digital Medicine and Clinical Translation, Ministry of Education, Shanghai, China
- Shanghai Key Laboratory of Orthopaedic Implants and Clinical Translation R&D Center of 3D Printing Technology, Department of Orthopaedic Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Naeder Helmy
- Department of Orthopedics, Bürgerspital Solothurn, Solothurn, Switzerland
| | - Tsung-Yuan Tsai
- School of Biomedical Engineering and Med-X Research Institute, Shanghai Jiao Tong University, Shanghai, China
- Engineering Research Center of Digital Medicine and Clinical Translation, Ministry of Education, Shanghai, China
- Shanghai Key Laboratory of Orthopaedic Implants and Clinical Translation R&D Center of 3D Printing Technology, Department of Orthopaedic Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| |
Collapse
|
|
19
|
Li Z, Zhang W, Ren S, Zhou R, Zhang X, You T, Bai L. Relationship Between Number of Lateral Intercondylar Ridges and Area of Denser Bone on the Lateral Intercondylar Wall. Orthop J Sports Med 2022; 10:23259671221091332. [PMID: 35571965 PMCID: PMC9096202 DOI: 10.1177/23259671221091332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 02/03/2022] [Indexed: 11/24/2022] Open
Abstract
Background: A deeper understanding of the anatomy of the intercondylar notch of the femur may help reduce technical errors during anatomic anterior cruciate ligament (ACL) reconstruction. Purposes: To classify the number of ridges on the lateral intercondylar wall, identify factors influencing the number of ridges, and define the relationship between the area of denser bone on the lateral intercondylar wall and the lateral intercondylar ridge. Study Design: Descriptive laboratory study. Methods: Included were 89 patients with computed tomography (CT) images of the knee joint. On full lateral view of the lateral femoral condyle, the authors evaluated for the presence of a lateral intercondylar ridge. The height and area of the lateral intercondylar wall (notch height and lateral notch area) and the length of Blumensaat line were calculated. Notch outlet length, axial notch area, notch width index, and transepicondylar length were also calculated using 3-dimensional CT. Maximum intensity projection was used to identify the area of denser bone on the femoral lateral intercondylar wall, and the relationship between this area and the lateral intercondylar ridge was investigated. Results: The lateral intercondylar ridge exhibited 3 types of morphological variations. The invisible type (no ridge) was observed in 20 knees (22.5%); the ridge type (1 ridge), in 23 knees (25.8%); and the plateau type (2 ridges), in 46 knees (51.7%). There were significant differences in notch height, lateral notch area, Blumensaat line length, and denser bone area among the ridge types (P ≤ .031 for all). The locations of the anterior ridge of the plateau type and of all 23 ridges of the ridge type corresponded to the anterior margin line of the area of denser bone. Conclusion: Significant differences were seen in the 3 types of lateral intercondylar ridges. The anterior margin line of the denser bone area on the lateral intercondylar wall was found to correspond to the anterior border of the plateau type and the ridge type. Clinical Relevance: The variations in the lateral intercondylar ridge may affect measurement accuracy during evaluation of ACL tunnel position while using the ridge as a landmark. The plateau-type ridge and the area of denser bone on the lateral intercondylar wall may provide a new way for surgeons to determine the femoral tunnel.
Collapse
Affiliation(s)
- Zijian Li
- Department of Sports Medicine and Rehabilitation, Peking University Shenzhen Hospital, Shenzhen, China
| | - Wentao Zhang
- Department of Sports Medicine and Rehabilitation, Peking University Shenzhen Hospital, Shenzhen, China
| | - Shiyou Ren
- Department of Sports Medicine and Rehabilitation, Peking University Shenzhen Hospital, Shenzhen, China
| | - Ri Zhou
- Department of Sports Medicine and Rehabilitation, Peking University Shenzhen Hospital, Shenzhen, China
| | - Xintao Zhang
- Department of Sports Medicine and Rehabilitation, Peking University Shenzhen Hospital, Shenzhen, China
| | - Tian You
- Department of Sports Medicine and Rehabilitation, Peking University Shenzhen Hospital, Shenzhen, China
| | - Lu Bai
- Department of Sports Medicine and Rehabilitation, Peking University Shenzhen Hospital, Shenzhen, China
| |
Collapse
|
|
20
|
Min BH, Song HK, Park KH, Kim TH, Park DY, Chung JY. Biomechanical Evaluation of Modified ACL Reconstruction with Over-the-Top Augmentation Technique. Indian J Orthop 2022; 56:812-820. [PMID: 35547346 PMCID: PMC9043071 DOI: 10.1007/s43465-021-00597-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 12/20/2021] [Indexed: 02/04/2023]
Abstract
BACKGROUND Modified ACL reconstruction with over-the-top augmentation technique (OA-ACLR) was designed to allow one-stage revision regardless of tunnel conditions as well as to offer firm stability by hybrid double-fixation. Thus, the purpose of the study is to biomechanically evaluate its effect on knee stability by comparing it with single-bundle ACL reconstruction (SB-ACLR). METHODS Ten porcine knees were sequentially tested using a custom testing system for intact ACL, ACL deficiency, SB-ACLR and OA-ACLR. First, 134-N anterior tibial load was applied, and anterior tibial translation was measured at 30°, 60°, and 90°. Then, anterior tibial translation and relative tibial rotation were measured in a combined rotatory load of 5-Nm of internal tibial torque and 10-Nm of valgus torque. RESULTS Under anterior tibial load or combined anterior and rotatory loads, SB-ACLR and OA-ACLR resulted in no significant increase in anterior tibial translation at all flexion angles compared with an intact ACL group, and no significant difference was noted in anterior tibial translation between the two ACL reconstruction groups. In combined rotatory load, OA-ACLR resulted in enhanced rotational stability compared with SB-ACLR, and it more closely restored relative tibial internal rotation to the intact ACL group. CONCLUSIONS Our study showed that modified ACL reconstruction with over-the-top augmentation technique resulted in enhanced rotational stability compared to the conventional single-bundle ACL reconstruction, especially at lower flexion angle in a porcine model. Therefore, with several potential advantages as well as biomechanical superiority, our new technique could be clinically applicable in primary and revision ACL reconstruction. LEVEL OF EVIDENCE Experimental.
Collapse
Affiliation(s)
- Byoung-Hyun Min
- grid.251916.80000 0004 0532 3933Department of Orthopedic Surgery, Ajou University School of Medicine, 164 Worldcup-ro, Yongtong-gu, Suwon, 16499 Korea
| | - Hyung Keun Song
- grid.251916.80000 0004 0532 3933Department of Orthopedic Surgery, Ajou University School of Medicine, 164 Worldcup-ro, Yongtong-gu, Suwon, 16499 Korea
| | - Ki Hoon Park
- grid.251916.80000 0004 0532 3933Department of Orthopedic Surgery, Ajou University School of Medicine, 164 Worldcup-ro, Yongtong-gu, Suwon, 16499 Korea
| | - Tae Hun Kim
- grid.251916.80000 0004 0532 3933Department of Orthopedic Surgery, Ajou University School of Medicine, 164 Worldcup-ro, Yongtong-gu, Suwon, 16499 Korea
| | - Do Young Park
- grid.251916.80000 0004 0532 3933Department of Orthopedic Surgery, Ajou University School of Medicine, 164 Worldcup-ro, Yongtong-gu, Suwon, 16499 Korea
| | - Jun Young Chung
- grid.251916.80000 0004 0532 3933Department of Orthopedic Surgery, Ajou University School of Medicine, 164 Worldcup-ro, Yongtong-gu, Suwon, 16499 Korea
| |
Collapse
|
|
21
|
Morales-Avalos R, Perelli S, Vilchez-Cavazos F, Castillo-Escobedo T, Peña-Martínez VM, Elizondo-Omaña R, Guzmán-López S, Padilla-Medina JR, Monllau JC. The morphology of the femoral footprint of the anterior cruciate ligament changes with aging from a large semicircular shape to a small flat ribbon-like shape. Knee Surg Sports Traumatol Arthrosc 2022; 30:3402-3413. [PMID: 35318508 PMCID: PMC9464138 DOI: 10.1007/s00167-022-06935-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Accepted: 03/04/2022] [Indexed: 01/10/2023]
Abstract
PURPOSE Compare the differences in the morphology of the ACL femoral footprint between the cadavers of the young and elderly in consideration of the degenerative physiological process that occurs with aging. METHODS The femoral footprint of the ACL was dissected in 81 knees of known gender and age (45 male/36 female). They were divided into four groups by age and gender, establishing 50 years as the cut-off point to divide patients by age. Three observers analyzed the femoral footprint dissections, and the shapes were described and classified. The area and morphometric characteristics of the femoral insertion of the ACL were determined and these were compared between genders and age groups. RESULTS The femoral footprint of the ACL from the cadavers of males younger than 50 years of age presented a semicircular morphology in 90% of the cases. In males aged more than 50 years, a ribbon-like morphology was found in 96% of the cases. In women less than 50 years old, the semicircular morphology was observed in 93.7% of the cases. In women aged over 50 years old, the ribbon-like morphology was found in 95% of the cases. A significant difference was observed between the prevalence rates of the morphologies, area size and measurements of the younger and older groups (p < 0.001 for both genders). CONCLUSIONS The femoral insertion of the ACL presents variations in its morphology, area and morphometric characteristics over time. It goes from a large semicircular shape that almost contacts the posterior articular cartilage to a smaller, flattened ribbon-like shape that moves away from the edge of the articular cartilage. It is bounded anteriorly by the lateral intercondylar ridge. These findings should be considered to avoid employing reconstruction techniques in which femoral tunnels with oval or rectangular shapes are used in patients under 50 years of age because they do not correspond to the morphology of the femoral insertion of the ACL in this age group.
Collapse
Affiliation(s)
- Rodolfo Morales-Avalos
- Knee and Arthroscopy Unit (ICATKNEE-EQUILAE), Department of Orthopedic Surgery, Institut Catalá de Traumatologia i Medicina de l'Esport (I.C.A.T.M.E.), Hospital Universitari Dexeus, Universitat Autonoma de Barcelona (U.A.B.), Barcelona, Catalunya, Spain. .,Department of Surgery and Morphologic Science, Orthopaedic Surgery Service, Hospital del Mar, Universitat Autònoma de Barcelona, Barcelona, Spain. .,Knee Unit, Department of Orthopedic Surgery and Traumatology, School of Medicine and University Hospital "Dr. José Eleuterio González", Universidad Autonoma de Nuevo León (U.A.N.L), Monterrey, Nuevo León, México.
| | - Simone Perelli
- Knee and Arthroscopy Unit (ICATKNEE-EQUILAE), Department of Orthopedic Surgery, Institut Catalá de Traumatologia i Medicina de l’Esport (I.C.A.T.M.E.), Hospital Universitari Dexeus, Universitat Autonoma de Barcelona (U.A.B.), Barcelona, Catalunya Spain ,Department of Surgery and Morphologic Science, Orthopaedic Surgery Service, Hospital del Mar, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Félix Vilchez-Cavazos
- Knee Unit, Department of Orthopedic Surgery and Traumatology, School of Medicine and University Hospital “Dr. José Eleuterio González”, Universidad Autonoma de Nuevo León (U.A.N.L), Monterrey, Nuevo León México
| | - Tadeo Castillo-Escobedo
- Knee Unit, Department of Orthopedic Surgery and Traumatology, School of Medicine and University Hospital “Dr. José Eleuterio González”, Universidad Autonoma de Nuevo León (U.A.N.L), Monterrey, Nuevo León México
| | - Víctor M. Peña-Martínez
- Knee Unit, Department of Orthopedic Surgery and Traumatology, School of Medicine and University Hospital “Dr. José Eleuterio González”, Universidad Autonoma de Nuevo León (U.A.N.L), Monterrey, Nuevo León México
| | - Rodrigo Elizondo-Omaña
- Department of Human Anatomy, School of Medicine , Universidad Autonoma de Nuevo León (U.A.N.L.), Monterrey, Nuevo León México
| | - Santos Guzmán-López
- Department of Human Anatomy, School of Medicine , Universidad Autonoma de Nuevo León (U.A.N.L.), Monterrey, Nuevo León México
| | - José Ramón Padilla-Medina
- Knee Unit, Department of Orthopedic Surgery and Traumatology, School of Medicine and University Hospital “Dr. José Eleuterio González”, Universidad Autonoma de Nuevo León (U.A.N.L), Monterrey, Nuevo León México
| | - Juan Carlos Monllau
- Knee and Arthroscopy Unit (ICATKNEE-EQUILAE), Department of Orthopedic Surgery, Institut Catalá de Traumatologia i Medicina de l’Esport (I.C.A.T.M.E.), Hospital Universitari Dexeus, Universitat Autonoma de Barcelona (U.A.B.), Barcelona, Catalunya Spain ,Department of Surgery and Morphologic Science, Orthopaedic Surgery Service, Hospital del Mar, Universitat Autònoma de Barcelona, Barcelona, Spain
| |
Collapse
|
|
22
|
Musahl V, Nazzal EM, Lucidi GA, Serrano R, Hughes JD, Margheritini F, Zaffagnini S, Fu FH, Karlsson J. Current trends in the anterior cruciate ligament part 1: biology and biomechanics. Knee Surg Sports Traumatol Arthrosc 2022; 30:20-33. [PMID: 34927221 DOI: 10.1007/s00167-021-06826-y] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 11/23/2021] [Indexed: 11/27/2022]
Abstract
A trend within the orthopedic community is rejection of the belief that "one size fits all." Freddie Fu, among others, strived to individualize the treatment of anterior cruciate ligament (ACL) injuries based on the patient's anatomy. Further, during the last two decades, greater emphasis has been placed on improving the outcomes of ACL reconstruction (ACL-R). Accordingly, anatomic tunnel placement is paramount in preventing graft impingement and restoring knee kinematics. Additionally, identification and management of concomitant knee injuries help to re-establish knee kinematics and prevent lower outcomes and registry studies continue to determine which graft yields the best outcomes. The utilization of registry studies has provided several large-scale epidemiologic studies that have bolstered outcomes data, such as avoiding allografts in pediatric populations and incorporating extra-articular stabilizing procedures in younger athletes to prevent re-rupture. In describing the anatomic and biomechanical understanding of the ACL and the resulting improvements in terms of surgical reconstruction, the purpose of this article is to illustrate how basic science advancements have directly led to improvements in clinical outcomes for ACL-injured patients.Level of evidenceV.
Collapse
Affiliation(s)
- Volker Musahl
- Department of Orthopaedic Surgery, UPMC Freddie Fu Sports Medicine Center, University of Pittsburgh, 3471 Fifth Ave, Suite 1010, Pittsburgh, PA, USA
| | - Ehab M Nazzal
- Department of Orthopaedic Surgery, UPMC Freddie Fu Sports Medicine Center, University of Pittsburgh, 3471 Fifth Ave, Suite 1010, Pittsburgh, PA, USA.
| | - Gian Andrea Lucidi
- Department of Orthopaedic Surgery, UPMC Freddie Fu Sports Medicine Center, University of Pittsburgh, 3471 Fifth Ave, Suite 1010, Pittsburgh, PA, USA.,IIa Clinica Ortopedica e Traumatologica, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Rafael Serrano
- Department of Orthopaedic Surgery, UPMC Freddie Fu Sports Medicine Center, University of Pittsburgh, 3471 Fifth Ave, Suite 1010, Pittsburgh, PA, USA
| | - Jonathan D Hughes
- Department of Orthopaedic Surgery, UPMC Freddie Fu Sports Medicine Center, University of Pittsburgh, 3471 Fifth Ave, Suite 1010, Pittsburgh, PA, USA
| | | | - Stefano Zaffagnini
- IIa Clinica Ortopedica e Traumatologica, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Freddie H Fu
- Department of Orthopaedic Surgery, UPMC Freddie Fu Sports Medicine Center, University of Pittsburgh, 3471 Fifth Ave, Suite 1010, Pittsburgh, PA, USA
| | - Jon Karlsson
- The Department of Orthopaedics, Institute of Clinical Sciences at Sahlgrenska Academy, Gothenburg University, Gothenburg, Sweden
| |
Collapse
|
|
23
|
Cheng R, Wang H, Jiang Z, Dimitriou D, Cheng CK, Tsai TY. The Femoral Tunnel Drilling Angle at 45° Coronal and 45° Sagittal Provided the Lowest Peak Stress and Strain on the Bone Tunnels and Anterior Cruciate Ligament Graft. Front Bioeng Biotechnol 2021; 9:797389. [PMID: 34900975 PMCID: PMC8661475 DOI: 10.3389/fbioe.2021.797389] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 11/08/2021] [Indexed: 12/03/2022] Open
Abstract
Purpose: The aims of this study were to 1) investigate the effects of femoral drilling angle in coronal and sagittal planes on the stress and strain distribution around the femoral and tibial tunnel entrance and the stress distribution on the graft, following anterior cruciate ligament reconstruction (ACLR), 2) identify the optimal femoral drilling angle to reduce the risk of the tunnel enlargement and graft failure. Methods: A validated three-dimensional (3D) finite element model of a healthy right cadaveric knee was used to simulate an anatomic ACLR with the anteromedial (AM) portal technique. Combined loading of 103.0 N anterior tibial load, 7.5 Nm internal rotation moment, and 6.9 Nm valgus moment during normal human walking at joint flexion of 20° was applied to the ACLR knee models using different tunnel angles (30°/45°/60° and 45°/60° in the coronal and sagittal planes, respectively). The distribution of von Mises stress and strain around the tunnel entrances and the graft was calculated and compared among the different finite element ACLR models with varying femoral drilling angles. Results: With an increasing coronal obliquity drilling angle (30° to 60°), the peak stress and maximum strain on the femoral and tibial tunnel decreased from 30° to 45° and increased from 45° to 60°, respectively. With an increasing sagittal obliquity drilling angle (45° to 60°), the peak stress and the maximum strain on the bone tunnels increased. The lowest peak stress and maximum strain at the ACL tunnels were observed at 45° coronal/45° sagittal drilling angle (7.5 MPa and 7,568.3 μ-strain at the femoral tunnel entrance, and 4.0 MPa and 4,128.7 μ-strain at the tibial tunnel entrance). The lowest peak stress on the ACL graft occurred at 45° coronal/45° sagittal (27.8 MPa) drilling angle. Conclusions: The femoral tunnel drilling angle could affect both the stress and strain distribution on the femoral tunnel, tibial tunnel, and graft. A femoral tunnel drilling angle of 45° coronal/ 45° sagittal demonstrated the lowest peak stress, maximum strain on the femoral and tibial tunnel entrance, and the lowest peak stress on the ACL graft.
Collapse
Affiliation(s)
- Rongshan Cheng
- School of Biomedical Engineering & Med-X Research Institute, Shanghai Jiao Tong University, Engineering Research Center of Digital Medicine and Clinical Translation, Ministry of Education, Shanghai, China.,Shanghai Key Laboratory of Orthopaedic Implants & Clinical Translation R&D Center of 3D Printing Technology, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Huizhi Wang
- School of Biomedical Engineering & Med-X Research Institute, Shanghai Jiao Tong University, Engineering Research Center of Digital Medicine and Clinical Translation, Ministry of Education, Shanghai, China.,Shanghai Key Laboratory of Orthopaedic Implants & Clinical Translation R&D Center of 3D Printing Technology, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ziang Jiang
- School of Biomedical Engineering & Med-X Research Institute, Shanghai Jiao Tong University, Engineering Research Center of Digital Medicine and Clinical Translation, Ministry of Education, Shanghai, China.,Shanghai Key Laboratory of Orthopaedic Implants & Clinical Translation R&D Center of 3D Printing Technology, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Dimitris Dimitriou
- Department of Orthopedics Balgrist University Hospital, Forchstrasse, Zürich, Switzerland
| | - Cheng-Kung Cheng
- School of Biomedical Engineering & Med-X Research Institute, Shanghai Jiao Tong University, Engineering Research Center of Digital Medicine and Clinical Translation, Ministry of Education, Shanghai, China.,Shanghai Key Laboratory of Orthopaedic Implants & Clinical Translation R&D Center of 3D Printing Technology, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Tsung-Yuan Tsai
- School of Biomedical Engineering & Med-X Research Institute, Shanghai Jiao Tong University, Engineering Research Center of Digital Medicine and Clinical Translation, Ministry of Education, Shanghai, China.,Shanghai Key Laboratory of Orthopaedic Implants & Clinical Translation R&D Center of 3D Printing Technology, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| |
Collapse
|
|
24
|
Kent RN, Amirtharaj MJ, Berube EE, Imhauser CW, Thein R, Voleti PB, Wickiewicz TL, Pearle AD, Nawabi DH. Anterior cruciate ligament graft forces are sensitive to fixation angle and tunnel position within the native femoral footprint during passive flexion. Knee 2021; 33:266-274. [PMID: 34844133 DOI: 10.1016/j.knee.2021.08.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 06/14/2021] [Accepted: 08/05/2021] [Indexed: 02/02/2023]
Abstract
BACKGROUND Anterior cruciate ligament (ACL) graft position within the anatomic femoral footprint of the native ACL and the flexion angle at which the graft is fixed (i.e., fixation angle) are important considerations in ACL reconstruction surgery. However, their combined effect on ACL graft force remains less well understood. HYPOTHESIS During passive flexion, grafts placed high within the femoral footprint carry lower forces than grafts placed low within the femoral footprint (i.e., high and low grafts, respectively). Forces carried by high grafts are independent of fixation angle. All reconstructions impart higher forces on the graft than those carried by the native ACL. STUDY DESIGN Controlled laboratory study. METHODS Five fresh-frozen cadaveric knees were mounted to a robotic manipulator and flexed from full extension to 90° of flexion. The ACL was sectioned and ACL force was calculated via superposition. ACL reconstructions were then performed using a patellar tendon autograft. For each knee, four different reconstruction permutations were tested: high and low femoral graft positions fixed at 15° and at 30° of flexion. Graft forces were calculated from full extension to 90° of flexion for each combination of femoral graft position and fixation angle again via superposition. Native ACL and ACL graft forces were compared through early flexion (by averaging tissue force from 0 to 30° of flexion) and in 5° increments from full extension to 90° of flexion. RESULTS When fixed at 30° of flexion, high grafts carried less force than low grafts through early flexion bearing a respective 64 ± 19 N and 88 ± 11 N (p = 0.02). Increasing fixation angle from 15° to 30° caused graft forces through early flexion to increase 40 ± 13 N in low grafts and 23 ± 6 N in high grafts (p < 0.001). Low grafts fixed at 30° of flexion differed most from the native ACL, carrying 67 ± 9 N more force through early flexion (p < 0.001). CONCLUSION ACL grafts placed high within the femoral footprint and fixed at a lower flexion angle carried less force through passive flexion compared to grafts placed lower within the femoral footprint and fixed at a higher flexion angle. At the prescribed pretensions, all grafts carried higher forces than the native ACL through passive flexion. CLINICAL RELEVANCE Both fixation angle and femoral graft location within the anatomic ACL footprint influence graft forces and, therefore, should be considered when performing ACL reconstruction.
Collapse
Affiliation(s)
- Robert N Kent
- Department of Biomechanics, Hospital for Special Surgery, 535 E 70(th) St, New York, NY 10021, United States.
| | - Mark J Amirtharaj
- Department of Biomechanics, Hospital for Special Surgery, 535 E 70(th) St, New York, NY 10021, United States.
| | - Erin E Berube
- Department of Biomechanics, Hospital for Special Surgery, 535 E 70(th) St, New York, NY 10021, United States.
| | - Carl W Imhauser
- Department of Biomechanics, Hospital for Special Surgery, 535 E 70(th) St, New York, NY 10021, United States.
| | - Ran Thein
- Department of Orthopedic Surgery, Chaim Sheba Medical Center, Tel Hashomer and Sackler Faculty of Medicine, Derech Sheba 2, Ramat Gan, Israel.
| | - Pramod B Voleti
- Montefiore Medical Center, 1250 Waters Place 11th Floor, Bronx, NY 10461, United States.
| | - Thomas L Wickiewicz
- Sports Medicine Institute, Hospital for Special Surgery, 535 E 70th St, New York, NY 10021, United States.
| | - Andrew D Pearle
- Sports Medicine Institute, Hospital for Special Surgery, 535 E 70th St, New York, NY 10021, United States.
| | - Danyal H Nawabi
- Sports Medicine Institute, Hospital for Special Surgery, 535 E 70th St, New York, NY 10021, United States.
| |
Collapse
|
|
25
|
Iriuchishima T, Goto B. Systematic Review of Surgical Technique and Tunnel Target Points and Placement in Anatomical Single-Bundle ACL Reconstruction. J Knee Surg 2021; 34:1531-1538. [PMID: 32480416 DOI: 10.1055/s-0040-1710521] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The purpose of this systematic review was to reveal the trend in surgical technique and tunnel targets points and placement in anatomical single-bundle anterior cruciate ligament (ACL) reconstruction. Following the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) statement, data collection was performed. PubMed, EMBASE, and Cochran Review were searched using the terms "anterior cruciate ligament reconstruction," "anatomic or anatomical," and "single bundle." Studies were included when they reported clinical results, surgical technique, and/or tunnel placement evaluation. Laboratory studies, technical reports, case reports, and reviews were excluded from this study. From these full article reviews, graft selection, method of creating the femoral tunnel, and femoral and tibial tunnel target points and placement were evaluated. In the 79 studies included for data evaluation, the selected grafts were: bone patella tendon bone autograft (12%), and hamstring autograft (83%). The reported methods of creating the femoral tunnel were: transportal technique (54%), outside-in technique (15%), and transtibial technique (19%). In the 60 studies reporting tunnel target points, the target point was the center of the femoral footprint (60%), and the center of the anteromedial bundle footprint (22%). In the 23 studies evaluating tunnel placement, the femoral tunnel was placed in a shallow-deep direction (32.3%) and in a high-low direction (30.2%), and the tibial tunnel was placed from the anterior margin of the tibia (38.1%). The results of this systematic review revealed a trend in anatomical single-bundle ACL reconstruction favoring a hamstring tendon with a transportal technique, and a tunnel target point mainly at the center of the ACL footprint. The level of evidence stated is Systematic review of level-III studies.
Collapse
Affiliation(s)
| | - Bunsei Goto
- Department of Orthopaedic Surgery, Kamimoku Spa Hospital, Minakami, Japan
| |
Collapse
|
|
26
|
Lee DK, Kim JH, Lee BH, Kim H, Jang MJ, Lee SS, Wang JH. Influence of Graft Bending Angle on Femoral Tunnel Widening After Double-Bundle ACL Reconstruction: Comparison of Transportal and Outside-In Techniques. Orthop J Sports Med 2021; 9:23259671211035780. [PMID: 34708137 PMCID: PMC8543726 DOI: 10.1177/23259671211035780] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Accepted: 04/14/2021] [Indexed: 12/02/2022] Open
Abstract
Background: Previous studies have suggested that increased mechanical stress due to acute
graft bending angle (GBA) is associated with tunnel widening and graft
failure after anterior cruciate ligament (ACL) reconstruction. Few studies
have compared the GBA between the outside-in (OI) and the transportal (TP)
techniques. Purpose: To evaluate the influence of GBA on clinical outcomes and tunnel widening
after ACL reconstruction with OI versus TP technique. Study Design: Cohort study; Level of evidence, 3. Methods: Included in the study were 56 patients who underwent double-bundle ACL
reconstruction (n = 28 in the OI group and n = 28 in the TP group). Clinical
outcomes (Lysholm, International Knee Documentation Committee, Tegner score,
and knee laxity) 1 year postoperatively were evaluated. Computed tomography
scans at 5 days and 1 year postoperatively were used for imaging
measurements, and the femoral tunnel was divided into the proximal third,
middle, and aperture sections. The GBA and cross-sectional area (CSA) were
measured using image analysis software and were compared between groups. A
correlation analysis was performed to determine if the GBA affected clinical
outcomes or tunnel widening. Results: No significant difference was observed in clinical outcomes between the
groups. The GBA of both the anteromedial (AM) and posterolateral bundles
were more acute in the OI group compared with the TP group
(P < .05). The CSA at the AM tunnel aperture
increased significantly in the OI group (84.2% ± 64.3%) compared with the TP
group (51.4% ± 36.7%) (P = .04). However, there were no
differences in the other sections. In the Pearson correlation test, GBA was
not correlated with tunnel widening or clinical outcomes. Conclusion: Regardless of technique, the GBA did not have a significant influence on
tunnel widening or clinical outcomes. Considering a wider AM tunnel
aperture, a more proximal and posterior AM tunnel position might be
appropriate with the OI technique.
Collapse
Affiliation(s)
- Do Kyung Lee
- Department of Orthopedic Surgery, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Changwon, South Korea.
| | - Jun Ho Kim
- Department of Orthopedic Surgery, Kyung Hee University Hospital at Gangdong, South Korea
| | - Byung Hoon Lee
- Department of Orthopedic Surgery, Gachon University Gil Medical Center, Incheon, South Korea
| | - Hyeonsoo Kim
- Department of Orthopedic Surgery, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Changwon, South Korea.
| | - Min Jae Jang
- Department of Orthopedic Surgery, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Changwon, South Korea.
| | - Sung-Sahn Lee
- Department of Orthopedic Surgery, Inje University Ilsan Paik Hospital, Goyang, South Korea
| | - Joon Ho Wang
- Department of Orthopedic Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea.,Department of Health Science and Technology and Department of Medical Device Management and Research, SAIHST (Samsung Advanced Institute for Health Sciences & Technology), Sungkyunkwan University, Seoul, South Korea
| |
Collapse
|
|
27
|
Sivakumaran T, Jaffer R, Marwan Y, Hart A, Radu A, Burman M, Martineau PA, Powell T. Reliability of Anatomic Bony Landmark Localization of the ACL Femoral Footprint Using 3D MRI. Orthop J Sports Med 2021; 9:23259671211042603. [PMID: 34692880 PMCID: PMC8532227 DOI: 10.1177/23259671211042603] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Accepted: 05/25/2021] [Indexed: 11/24/2022] Open
Abstract
Background: Nonanatomic placement of anterior cruciate ligament (ACL) grafts is a leading cause of ACL graft failure. Three-dimensional (3D) magnetic resonance imaging (MRI) femoral footprint localization could enhance planning for an ACL graft's position. Purpose: To determine the intra- and interobserver reliability of measurements of the ACL femoral footprint position and size obtained from 3D MRI scans. Study Design: Cohort study; Level of evidence, 3. Methods: A total of 41 patients with complete ACL tears were recruited between November 2014 and May 2016. Preoperatively, a coronal-oblique proton-density fast spin echo 3D acquisition of the contralateral uninjured knee was obtained along the plane of the ACL using a 1.5T MRI scanner. ACL footprint parameters were obtained independently by 2 musculoskeletal radiologists (observers A and B). The distal and anterior positions of the center of the footprint were measured relative to the apex of the deep cartilage at the posteromedial aspect of the lateral femoral condyle, and the surface area of the ACL femoral footprint was approximated from multiplanar reformatted images. After 1 month, the measurements were repeated. Intraclass correlation coefficients (ICCs) were calculated to assess for intra- and interobserver reliability. Bland-Altman plots were produced to screen for potential systematic bias in measurement and to calculate limits of agreement. Results: The ICCs for intraobserver reliability of the ACL femoral distal and anterior footprint coordinates were 0.75 and 0.78, respectively, for observer A. For observer B, they were 0.75 and 0.74, respectively. The ICCs for interobserver reliability were 0.75 and 0.85 for the distal and anterior coordinates, respectively. Bland-Altman plots demonstrated no significant systematic bias. For surface area measurements, the intraobserver ICCs were 0.37 and 0.62 for observers A and B, respectively. The interobserver reliability was 0.60. Observer B consistently measured the footprints as slightly larger versus observer A (1.19 ± 0.27 vs 1 ± 0.22 cm2, respectively; P < .001). Conclusion: Locating the center of the anatomic footprint of the ACL with 3D MRI showed substantial intra- and interobserver agreement. Interobserver agreement for the femoral footprint surface area was fair to moderate.
Collapse
Affiliation(s)
- Thiru Sivakumaran
- Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - Rehana Jaffer
- McGill University Health Sciences Centre, McGill University, Montreal, Quebec, Canada
| | - Yousef Marwan
- McGill University Health Sciences Centre, McGill University, Montreal, Quebec, Canada
| | - Adam Hart
- McGill University Health Sciences Centre, McGill University, Montreal, Quebec, Canada
| | - Arnold Radu
- McGill University Health Sciences Centre, McGill University, Montreal, Quebec, Canada
| | - Mark Burman
- McGill University Health Sciences Centre, McGill University, Montreal, Quebec, Canada
| | - Paul A Martineau
- McGill University Health Sciences Centre, McGill University, Montreal, Quebec, Canada
| | - Tom Powell
- McGill University Health Sciences Centre, McGill University, Montreal, Quebec, Canada
| |
Collapse
|
|
28
|
Mhaskar VA, Jain Y, Soni P, Fiske R, Maheshwari J. How Important is the Tunnel Position in Outcomes Post-ACL Reconstruction: A 3D CT-Based Study. Indian J Orthop 2021; 56:312-318. [PMID: 35140863 PMCID: PMC8789976 DOI: 10.1007/s43465-021-00485-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Accepted: 08/10/2021] [Indexed: 02/04/2023]
Abstract
BACKGROUND Drilling the femoral and tibial tunnels at their anatomical locations are critical for good outcomes and involve seeing the footprints well. We intended to compare two techniques of drilling the tunnels and the patient-reported outcomes and knee stability of patients undergoing single bundle ACL reconstruction using 3D CT to evaluate if the tunnels were anatomical or not. MATERIALS AND METHODS Sixty single bundle ACL reconstructions were analyzed, 30 each with Technique A and B. Pre-operative and after a minimum 27 month follow-up Lysholm, IKDC, Tegner score, hop test, and Lachman test were noted. 3D CT was done to classify femoral tunnels positions as being well placed, slightly or grossly misplaced and tibial tunnels as optimal or suboptimal and compared. RESULTS Sixty ACL reconstructions had full follow-up with a mean follow-up of 34 months. There was no significant difference between tunnel positions between the two techniques. Well-placed femoral tunnel had better Lysholm score (62.2 ± 16.2 v/s 48.5 ± 17.2, p 0.002) and IKDC score (62.5 ± 14.3 v/s 52.7 ± 15.1, p 0.012).). Those who had their surgeries within 3 months of their injury had better hop test (4.4 ± 0.9 v/s 3.9 ± 1, p 0.034) and IKDC scores (62.5 ± 15.8 v/s 33.2 ± 13.8, p 0.026) as compared to those that had surgery done after 3 months. CONCLUSION Tibial tunnel positions were optimal in most cases and did not differ between the two techniques. Well-placed femoral tunnels and surgeries done within 3 months of the injury produced best results.
Collapse
Affiliation(s)
- Vikram A. Mhaskar
- Department of Orthopaedics, Max Smart Hospital Saket, New Delhi, 110017 India ,Knee & Shoulder Clinic, F7 East Of Kailash, New Delhi, 110017 India
| | - Yogesh Jain
- Department of Orthopaedics, Max Smart Hospital Saket, New Delhi, 110017 India
| | - Pankaj Soni
- Department of Orthopaedics, Max Smart Hospital Saket, New Delhi, 110017 India
| | - Rajendra Fiske
- Department of Orthopaedics, Max Smart Hospital Saket, New Delhi, 110017 India
| | - Jitendra Maheshwari
- Department of Orthopaedics, Max Smart Hospital Saket, New Delhi, 110017 India ,Knee & Shoulder Clinic, F7 East Of Kailash, New Delhi, 110017 India
| |
Collapse
|
|
29
|
Lee DK, Kim JH, Lee SS, Lee BH, Kim H, Kim J, Wang JH. Femoral Tunnel Widening After Double-Bundle Anterior Cruciate Ligament Reconstruction With Hamstring Autograft Produces a Small Shift of the Tunnel Position in the Anterior and Distal Direction: Computed Tomography-Based Retrospective Cohort Analysis. Arthroscopy 2021; 37:2554-2563.e1. [PMID: 33745939 DOI: 10.1016/j.arthro.2021.03.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 02/22/2021] [Accepted: 03/04/2021] [Indexed: 02/02/2023]
Abstract
PURPOSE To determine whether the femoral tunnel position remains in an anatomical footprint after tunnel widening and shifting. METHODS Patients who underwent unilateral double-bundle anterior cruciate ligament reconstruction with hamstring autograft and performed computed tomography scan evaluation at the time of 5 days and 1 year postoperatively were included in this retrospective cohort study. Three-dimensional models of the femur and femoral tunnels were reconstructed from computed tomography scan data. The location of the tunnel center and tunnel margins in the anatomical coordinate system, and the mean shifting distance of tunnel center and margin were measured with image analysis software during the period. The change of tunnel center location in Bernard quadrant was confirmed if the tunnel center remained within the boundaries of anatomical position after tunnel widening. RESULTS A total of 56 patients satisfied the inclusion criteria. The mean shifting distance of AM and PL tunnel centers were 1.7 ± 0.9 mm and 1.6 ± 0.6 mm. The Tunnel margin of the anteromedial (AM) and posteromedial (PL) tunnels were shifted to 2.5 ± 1.3 mm and 2.6 ± 1.4 mm in the anterior direction, and 1.4 ± 0.9 mm and 1.0 ± 0.7 mm in the distal direction, respectively. Among the anatomical located tunnel, 97% (32/33) and 87.1% (27/31) of AM and PL tunnel centers remained in a range of anatomical footprint. The tunnel center was shifted from the anatomical position into a nonanatomical position in 3% (1/33) of the AM tunnel and 12.9% (4/31) of PL tunnel after tunnel widening. The tunnel location which shifted nonanatomically were relatively anterior and distal position. CONCLUSIONS Tunnel widening shifts the tunnel position to the anterior and distal direction, which could change the initial tunnel position. Nevertheless, the majority of tunnel positions remained in the anatomical position after tunnel widening and shifting. LEVEL OF EVIDENCE Level III, retrospective cohort study.
Collapse
Affiliation(s)
- Do Kyung Lee
- Department of Orthopedic Surgery, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Changwon, Korea
| | - Jun Ho Kim
- Department of Orthopedic Surgery, Seoul Medical Center, Seoul, Korea
| | - Sung-Sahn Lee
- Department of Orthopedic Surgery, Inje University Ilsan Paik Hospital, Goyang, Korea
| | - Byung Hoon Lee
- Department of Orthopedic Surgery, Gachon University Gil Medical Center, Incheon, Korea
| | - Hyeonsoo Kim
- Department of Orthopedic Surgery, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Changwon, Korea
| | - Jinwoo Kim
- Department of Orthopedic Surgery, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Changwon, Korea
| | - Joon Ho Wang
- Department of Orthopedic Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea; Department of Health Science and Technology, SAIHST, Sungkyunkwan University, Seoul, Korea; Department of Medical Device Management and Research, SAIHST, Sungkyunkwan University, Seoul, Korea.
| |
Collapse
|
|
30
|
Cuzzolin M, Previtali D, Delcogliano M, Filardo G, Candrian C, Grassi A. Independent Versus Transtibial Drilling in Anterior Cruciate Ligament Reconstruction: A Meta-analysis With Meta-regression. Orthop J Sports Med 2021; 9:23259671211015616. [PMID: 34291116 PMCID: PMC8278479 DOI: 10.1177/23259671211015616] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Accepted: 12/02/2020] [Indexed: 12/02/2022] Open
Abstract
Background: Anterior cruciate ligament (ACL) reconstruction can be performed with different techniques for independent and transtibial (TT) drilling of femoral tunnels, but there is still no consensus on which approach leads to the best outcome. Purpose: To assess whether the independent or TT drilling approach for ACL reconstruction leads to the best functional outcomes. Study Design: Systematic review; Level of evidence, 2. Methods: A systematic literature search was conducted on July 1, 2020, using the PubMed, Web of Science, Cochrane Library, and Scopus databases. The influence of different femoral drilling techniques was analyzed through a meta-analysis in terms of patient-reported outcome measure scores, risk of complications, range of motion limitations, graft failure, and differential laxity. Subanalyses were performed to compare the different independent drilling techniques considered. Linear metaregression was performed to evaluate if the year of study publication influenced the results. The risk of bias and quality of evidence were assessed following the Cochrane guidelines. Results: A total of 22 randomized controlled trials including 1658 patients were included in the meta-analysis. Both International Knee Documentation Committee (IKDC) subjective score and Lysholm score were higher with the independent drilling approach (mean difference [MD], 1.24 [P = .02] and 0.55 [P = .005], respectively). No difference was documented in terms of the risk of reinjury, but independent drilling led to reduced KT-1000 arthrometer–assessed anterior tibial translation (MD, 0.23; P = .01) and a higher probability of a negative postoperative pivot-shift test finding (risk ratio, 1.13; P = .04). There were no significant differences in IKDC objective or Tegner scores. A P value of .07 was found for the association between the year of the study and IKDC objective scores. Conclusion: Independent femoral tunnel drilling provided better results than the TT approach, although the difference was not clinically significant. No difference was observed in the risk of reinjury. Increasingly better results were seen among surgical procedures performed in more recent years. Among the independent drilling options, the anteromedial portal technique seemed to provide the most favorable outcomes. The lack of clinically significant differences and the promising outcomes reported with new modified TT techniques suggest the importance of correct placement, rather than the tunnel drilling approach, to optimize the results of ACL reconstruction.
Collapse
Affiliation(s)
- Marco Cuzzolin
- Orthopedic and Traumatology Unit, Ospedale Regionale di Lugano, Ente Ospedaliero Cantonale, Lugano, Switzerland
| | - Davide Previtali
- Orthopedic and Traumatology Unit, Ospedale Regionale di Lugano, Ente Ospedaliero Cantonale, Lugano, Switzerland
| | - Marco Delcogliano
- Orthopedic and Traumatology Unit, Ospedale Regionale di Lugano, Ente Ospedaliero Cantonale, Lugano, Switzerland
| | - Giuseppe Filardo
- Orthopedic and Traumatology Unit, Ospedale Regionale di Lugano, Ente Ospedaliero Cantonale, Lugano, Switzerland.,Applied and Translational Research Center, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy.,Faculty of Biomedical Sciences, Università della Svizzera Italiana, Lugano, Switzerland
| | - Christian Candrian
- Orthopedic and Traumatology Unit, Ospedale Regionale di Lugano, Ente Ospedaliero Cantonale, Lugano, Switzerland.,Faculty of Biomedical Sciences, Università della Svizzera Italiana, Lugano, Switzerland
| | - Alberto Grassi
- Clinica Ortopedica e Traumatologica II, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| |
Collapse
|
|
31
|
Loucas M, Loucas R, D'Ambrosi R, Hantes ME. Clinical and Radiological Outcomes of Anteromedial Portal Versus Transtibial Technique in ACL Reconstruction: A Systematic Review. Orthop J Sports Med 2021; 9:23259671211024591. [PMID: 34277881 PMCID: PMC8255613 DOI: 10.1177/23259671211024591] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Accepted: 02/28/2021] [Indexed: 01/14/2023] Open
Abstract
Background: The drilling technique used to make a femoral tunnel is critically important for determining outcomes after anterior cruciate ligament (ACL) reconstruction. The 2 most common methods are the transtibial (TT) and anteromedial (AM) techniques. Purpose: To determine whether graft orientation and placement affect clinical outcomes by comparing clinical and radiological outcomes after single-bundle ACL reconstruction with the AM versus TT technique. Study Design: Systematic review; Level of evidence, 3. Methods: Articles in PubMed, EMBASE, the Cochrane Library, ISI Web of Science, Scopus, and MEDLINE were searched from inception until April 25, 2020, using the following Boolean operators: transtibial OR trans-tibial AND (anteromedial OR trans-portal OR independent OR three portal OR accessory portal) AND anterior cruciate ligament. Results: Of 1270 studies retrieved, 39 studies involving 11,207 patients were included. Of these studies, 14 were clinical, 13 were radiological, and 12 were mixed. Results suggested that compared with the TT technique, the AM technique led to significantly improved anteroposterior and rotational knee stability, International Knee Documentation Committee (IKDC) scores, and recovery time from surgery. A higher proportion of negative Lachman (P = .0005) and pivot-shift test (P = .0001) results, lower KT-1000 arthrometer maximum manual displacement (P = .00001), higher Lysholm score (P = .001), a higher incidence of IKDC grade A/B (P = .05), and better visual analog scale score for satisfaction (P = .00001) were observed with the AM technique compared with the TT technique. The AM drilling technique demonstrated a significantly shorter tunnel length (P = .00001). Significant differences were seen between the femoral and tibial graft angles in both techniques. Low overall complication and revision rates were observed for ACL reconstruction with the AM drilling technique, similar to the TT drilling technique. Conclusion: In single-bundle ACL reconstruction, the AM drilling technique was superior to the TT drilling technique based on physical examination, scoring systems, and radiographic results. The AM portal technique provided a more reproducible anatomic graft placement compared with the TT technique.
Collapse
Affiliation(s)
- Marios Loucas
- Department of Orthopedics, Balgrist University Hospital, University of Zurich, Zurich, Switzerland
| | - Rafael Loucas
- Department of Orthopedics, Balgrist University Hospital, University of Zurich, Zurich, Switzerland
| | | | - Michael Elias Hantes
- Department of Orthopedic Surgery, Faculty of Medicine, University of Thessaly, Larissa, Greece
| |
Collapse
|
|
32
|
Seeing Beyond Morphology-Standardized Stress MRI to Assess Human Knee Joint Instability. Diagnostics (Basel) 2021; 11:diagnostics11061035. [PMID: 34199917 PMCID: PMC8226919 DOI: 10.3390/diagnostics11061035] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 05/25/2021] [Accepted: 06/01/2021] [Indexed: 12/28/2022] Open
Abstract
While providing the reference imaging modality for joint pathologies, MRI is focused on morphology and static configurations, thereby not fully exploiting the modality’s diagnostic capabilities. This study aimed to assess the diagnostic value of stress MRI combining imaging and loading in differentiating partial versus complete anterior cruciate ligament (ACL)-injury. Ten human cadaveric knee joint specimens were subjected to serial imaging using a 3.0T MRI scanner and a custom-made pressure-controlled loading device. Emulating the anterior-drawer test, joints were imaged before and after arthroscopic partial and complete ACL transection in the unloaded and loaded configurations using morphologic sequences. Following manual segmentations and registration of anatomic landmarks, two 3D vectors were computed between anatomic landmarks and registered coordinates. Loading-induced changes were quantified as vector lengths, angles, and projections on the x-, y-, and z-axis, related to the intact unloaded configuration, and referenced to manual measurements. Vector lengths and projections significantly increased with loading and increasing ACL injury and indicated multidimensional changes. Manual measurements confirmed gradually increasing anterior tibial translation. Beyond imaging of ligament structure and functionality, stress MRI techniques can quantify joint stability to differentiate partial and complete ACL injury and, possibly, compare surgical procedures and monitor treatment outcomes.
Collapse
|
|
33
|
Moon DK, Jo HS, Lee DY, Kang DG, Won HC, Seo MS, Hwang SC. Anterior cruciate ligament femoral-tunnel drilling through an anteromedial portal: 3-dimensional plane drilling angle affects tunnel length relative to notchplasty. Knee Surg Relat Res 2021; 33:13. [PMID: 33853676 PMCID: PMC8048303 DOI: 10.1186/s43019-021-00092-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Accepted: 03/02/2021] [Indexed: 11/10/2022] Open
Abstract
Background Notchplasty is a surgical technique often performed during anterior cruciate ligament reconstruction (ACLR) with widening of the intercondylar notch of the lateral distal femur to avoid graft impingement. The purpose of this study was to correlate femoral-tunnel length with 3-dimensional (3D) drilling angle through the anteromedial (AM) portal with and without notchplasty. Materials and methods Computer data were collected from an anatomical study using 16 cadaveric knees. The anterior cruciate ligament (ACL) femoral insertion was dissected and outlined for gross anatomical observation. The dissected cadaveric knees were scanned by computed tomography (CT). Three-dimensional measurements were calculated using software (Geomagic, Inc., Research Triangle Park, NC, USA) and included the center of the ACL footprint and the size of the ACL femoral footprint. The femoral-tunnel aperture centers were measured in the anatomical posterior-to-anterior and proximal-to-distal directions using Bernard’s quadrant method. The ACL tunnel was created 3-demensionally in the anatomical center of femoral foot print of ACL using software (SolidWorks®, Corp., Waltham, MA, USA). The 8-mm cylinder shaped ACL tunnel was rested upon the anatomical center of the ACL footprint and placed in three different positions: the coronal plane, the sagittal plane, and the axial plane. Finally, the effect of notchplasty on the femoral-tunnel length and center of the ACL footprint were measured. All the above-mentioned studies performed ACLR using the AM portal. Results The length of the femoral tunnels produced using the low coronal and high axial angles with 5-mm notchplasty became significantly shorter as the femoral starting position became more horizontal. The result was 30.38 ± 2.11 mm on average at 20° in the coronal plane/70° in the axial plane/45° in the sagittal plane and 31.26 ± 2.08 mm at 30° in the coronal plane/60° in the axial plane/45° in the sagittal plane, respectively, comparing the standard technique of 45° in the coronal/45° in the axial/45° in the sagittal plane of 32.98 ± 3.04 mm (P < 0.001). The tunnels made using the high coronal and low axial angles with notchplasty became longer than those made using the standard technique: 40.31 ± 3.36 mm at 60° in the coronal plane/30° in the axial plane/45° in the sagittal plane and 50.46 ± 3.13 mm at 75° in the coronal plane/15° in the axial plane/45° in the sagittal plane (P < 0.001). Conclusions Our results show that excessive notchplasty causes the femoral tunnel to be located in the non-anatomical center of the ACL footprint and reduces the femoral-tunnel length. Therefore, care should be taken to avoid excessive notchplasty when performing this operation.
Collapse
Affiliation(s)
- Dong-Kyu Moon
- Department of Orthopaedic Surgery and Institute of Health Science, Gyeongsang National University School of Medicine, Gyeongsang National University Hospital, Jinju, Republic of Korea
| | - Ho-Seung Jo
- Department of Orthopaedic Surgery and Institute of Health Science, Gyeongsang National University School of Medicine, Gyeongsang National University Hospital, Jinju, Republic of Korea
| | - Dong-Yeong Lee
- Department of Orthopaedic Surgery, Barun Hospital, Jinju, Republic of Korea
| | - Dong-Geun Kang
- Department of Orthopaedic Surgery, Gyeongsang National University Changwon Hospital, Changwon, Republic of Korea
| | - Hee-Chan Won
- Department of Orthopaedic Surgery and Institute of Health Science, Gyeongsang National University School of Medicine, Gyeongsang National University Hospital, Jinju, Republic of Korea
| | - Min-Seok Seo
- Department of Orthopaedic Surgery and Institute of Health Science, Gyeongsang National University School of Medicine, Gyeongsang National University Hospital, Jinju, Republic of Korea
| | - Sun-Chul Hwang
- Department of Orthopaedic Surgery and Institute of Health Science, Gyeongsang National University School of Medicine, Gyeongsang National University Hospital, Jinju, Republic of Korea.
| |
Collapse
|
|
34
|
Li R, Li T, Zhang Q, Fu W, Li J. Comparison of Clinical Outcomes between Anteromedial and Transtibial Techniques of Single-Bundle Anterior Cruciate Ligament Reconstruction: A Systematic Review and Meta-Analysis. JOURNAL OF SPORTS SCIENCE AND MEDICINE 2021; 20:237-249. [PMID: 34211316 DOI: 10.52082/jssm.2021.237] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Accepted: 02/04/2021] [Indexed: 02/05/2023]
Abstract
This study compared clinical outcomes obtained after single-bundle anterior cruciate ligament (ACL) reconstruction using the anteromedial (AM) and transtibial (TT) techniques, which comprise the conventional transtibial (cTT) and modified transtibial (mTT) techniques. This study included clinical randomized controlled trials and prospective and retrospective controlled trials with AM and TT techniques from the PubMed and Embase databases and the Cochrane Library. All databases were searched from January 2010 to July 2020. Two independent evaluators verified the quality of the included studies using the Cochrane Collaboration's risk of bias tool and the Newcastle-Ottawa Scale (NOS). Outcome measures analysed included the Lachman test, pivot-shift test, side-to-side difference (SSD), Lysholm score, Tegner activity scale, International Knee Documentation Committee (IKDC) grade and score. Ten randomized controlled trials (RCTs) and 16 prospective and retrospective controlled trials were included with a total of 2202 patients. There were 1180 patients and 1022 patients in the AM and TT groups, respectively. Compared to the cTT group, superior postoperative results were observed in the AM group based on the negative rate of the Lachman test and the pivot-shift test, IKDC grade and score, Lysholm score, Tegner activity scale and SSD (p < 0.05). However, there was no significant difference between the AM and mTT groups (p > 0.05). Compared to the conventional TT technique, the AM technique exhibited superior clinical outcomes. Nevertheless, the modified TT and AM techniques had comparable results. With neither of the techniques (mTT or AM) producing significantly superior outcomes, surgeons can choose either of them depending on their preferences.
Collapse
Affiliation(s)
- Ran Li
- Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University
| | - Tao Li
- Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University
| | - Qiuping Zhang
- Rheumatism Immunology Laboratory, West China Hospital, Sichuan University
| | - Weili Fu
- Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University
| | - Jian Li
- Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University
| |
Collapse
|
|
35
|
Combination of anterior tibial and femoral tunnels makes the signal intensity of antero-medial graft higher in double-bundle anterior cruciate ligament reconstruction. Knee Surg Sports Traumatol Arthrosc 2021; 29:783-792. [PMID: 32350577 DOI: 10.1007/s00167-020-06014-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Accepted: 04/17/2020] [Indexed: 12/27/2022]
Abstract
PURPOSE To elucidate whether sagittal graft tunnel affects the signal intensity in anatomical ACL reconstruction (ACLR) and to clarify the prevalence of intercondylar roof impingement. It was hypothesized that if the tunnel apertures are located within the anatomical footprint of ACL, tunnel position would not affect the signal intensity. METHODS A total of 132 patients who underwent anatomical double-bundle ACLR (DB-ACLR) using hamstring autograft were recruited. Tunnel position was determined by the quadrant method on three-dimensional computed tomography; the femoral tunnel position was defined as "high and low" or "deep and shallow", while that of the tibial side was defined as "anterior and posterior" or "medial and lateral". Subjects were divided into three groups according to the tertile of % deep-shallow. The signal intensity was evaluated by the region of interest value of the antero-medial bundle (AMB) and postero-lateral bundle on magnetic resonance imaging at 12 months after reconstruction. Linear regression analysis was conducted to elucidate the relationship between the percentage position of each tunnel and the graft signal intensity. RESULTS In the shallow tertile group, AMB signal intensity increased in the anterior position of the tibial tunnel (β = - 0.34; P = 0.025). In the intermediate and deep tertile groups, the tunnel position did not correlate with the signal intensity. CONCLUSIONS A more anterior tibial tunnel position increases AMB signal intensity in shallower femoral tunnel. Conversely, this correlation is attenuated for deeper femoral tunnels. Surgeons should pay attention to sagittal femoral tunnel position to create a more anterior tibial tunnel position. LEVEL OF EVIDENCE Level III.
Collapse
|
|
36
|
Bowman EN, Freeman TH, Limpisvasti O, Cole BJ, ElAttrache NS. Anterior cruciate ligament reconstruction femoral tunnel drilling preference among orthopaedic surgeons. Knee 2021; 29:564-570. [PMID: 33774590 DOI: 10.1016/j.knee.2021.02.030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 01/13/2021] [Accepted: 02/22/2021] [Indexed: 02/02/2023]
Abstract
BACKGROUND Anterior cruciate ligament reconstruction (ACLR) technique for femoral tunnel drilling varies substantially, each with advantages and disadvantages. The purpose of this study was to define ACLR femoral tunnel technique predilection among surgeons and to explore factors associated with their preference. METHODS An 11-question survey regarding ACLR femoral tunnel technique was completed by 560 AANA/AOSSM members. Surgeon and practice demographics and residency and fellowship experiences were evaluated with bivariate and multivariable models for association with surgeon preference. RESULTS In current practice, 55% of surgeons prefer anteromedial (AM) portal drilling, 32% retrograde, and 14% transtibial (TT). Sports Medicine fellowship experience was the strongest predictor of current practice (p < 0.001), followed by residency technique (p = 0.014). A significant increase in TT drilling was noted for those practicing >15 years TT (29% vs 3%, p < 0.001), with an inverse relationship for retrograde drilling (38% vs 21%, p < 0.001). Number of ACLRs/year and percent Sports specific practice were significant predictors for AM drilling (p < 0.001). Though less than AM and retrograde, TT was more common for those in private practice (17% vs 8%, p < 0.001), and more prevalent in the Midwest/Southeast (19% vs 10%, p = 0.003). Non-significant predictors included highest level of athlete for whom an ACLR had been performed, level of athlete serving as team physician, and Certificate of Added Qualifications status. CONCLUSION Surgeon training, practice setting, and years in practice significantly predict preference for femoral tunnel drilling technique. Surgeon comfort and confidence in attaining an anatomic reconstruction should drive choice of technique.
Collapse
Affiliation(s)
- Eric N Bowman
- Department of Orthopaedics, Vanderbilt University Medical Center, 1215 21st Avenue South, 4200 Medical Center East, Nashville, TN 37232-8774, United States.
| | - Thomas H Freeman
- Department of Orthopaedics, Vanderbilt University Medical Center, 1215 21st Avenue South, 4200 Medical Center East, Nashville, TN 37232-8774, United States.
| | - Orr Limpisvasti
- Attending Orthopaedic Surgeon, Kerlan Jobe Institute, 6801 Park Terrace, Los Angeles, CA 90045, United States
| | - Brian J Cole
- Department of Orthopaedics, Rush University Medical Center, 1611 W Harrison, Suite 300, Chicago, IL 60612, United States.
| | - Neal S ElAttrache
- Attending Orthopaedic Surgeon, Kerlan Jobe Institute, 6801 Park Terrace, Los Angeles, CA 90045, United States.
| |
Collapse
|
|
37
|
Su M, Jia X, Zhang Z, Jin Z, Li Y, Dong Q, Xu W. Medium-Term (Least 5 Years) Comparative Outcomes in Anterior Cruciate Ligament Reconstruction Using 4SHG, Allograft, and LARS Ligament. Clin J Sport Med 2021; 31:e101-e110. [PMID: 30855342 PMCID: PMC7928216 DOI: 10.1097/jsm.0000000000000730] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Accepted: 12/21/2018] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To compare the clinical efficacy of anterior cruciate ligament (ACL) reconstruction with 4-strand hamstring tendon autograft (4SHG), allograft and the Ligament Advanced Reinforcement System (LARS) ligament, and to find the causes of cumulative failure or nonreturn to sport. DESIGN Retrospective case series. SETTING Department of Orthopedic Surgery, the second affiliated hospital of Soochow University, Suzhou, Jiangsu, China. PATIENTS Three hundred six patients with isolated ACL deficiency were included. Two hundred twenty-nine patients met the inclusion/exclusion criteria, and finally, 185 of these patients participated in this study. INTERVENTIONS Anterior cruciate ligament reconstruction using 4SHG, allograft, and LARS. MAIN OUTCOME MEASURES Objective knee function, subjective knee function, and information regarding return to sport, cumulative failure, and complications. Secondary: distribution of tunnel position and tunnel enlargement. RESULTS There were no statistically significant differences between the 3 groups regarding all the clinical objective and subjective results, return to sport, complications, or cumulative failures (P > 0.05). One hundred twenty-eight patients (69.2%, 128/185) returned to sport. Preoperative (after injury) Tegner scores were inferior to postoperative Tegner scores, and postoperative Tegner scores were inferior to preinjury Tegner scores (P < 0.01). The femoral tunnel malposition was significantly associated with cumulative failure (P < 0.05). CONCLUSIONS There were no statistically significant differences among the 4SHG, allograft, and LARS ligament in terms of the clinical outcomes after ACL reconstruction (ACLR) at 5-years follow-up. Interestingly, ACLR could improve the functional and motorial level of the knee, but patients had great difficulty in regaining the level of preinjury movement. In addition, the malposition of the femoral tunnel was an important cause of cumulative failure.
Collapse
Affiliation(s)
- Mengdi Su
- Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
- School of Medicine, Soochow University, Suzhou, Jiangsu, China; and
| | - Xinyu Jia
- Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
- School of Medicine, Soochow University, Suzhou, Jiangsu, China; and
| | - Zaihang Zhang
- Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
- School of Medicine, Soochow University, Suzhou, Jiangsu, China; and
| | - Zhigao Jin
- Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
- School of Medicine, Soochow University, Suzhou, Jiangsu, China; and
| | - Yong Li
- Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
- School of Medicine, Soochow University, Suzhou, Jiangsu, China; and
| | - Qirong Dong
- Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
- School of Medicine, Soochow University, Suzhou, Jiangsu, China; and
| | - Wei Xu
- Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
- School of Medicine, Soochow University, Suzhou, Jiangsu, China; and
| |
Collapse
|
|
38
|
Tang N, Zhang W, George DM, Su Y, Huang T. The Top 100 Most Cited Articles on Anterior Cruciate Ligament Reconstruction: A Bibliometric Analysis. Orthop J Sports Med 2021; 9:2325967120976372. [PMID: 33623795 PMCID: PMC7876772 DOI: 10.1177/2325967120976372] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Accepted: 07/27/2020] [Indexed: 11/15/2022] Open
Abstract
Background The concept of anterior cruciate ligament (ACL) reconstruction (ACLR) has become widely accepted, gaining increased attention in recent years and resulting in many research achievements in this field. Purpose The aim of this study was to determine which original articles on ACLR have been most influential in this field by identifying and analyzing the characteristics of the 100 most cited articles. Study Design Cross-sectional study. Methods Articles on ACLR were identified via the Thomson ISI Web of Science database on November 30, 2019. The 100 most cited articles were identified based on inclusion and exclusion criteria. The data extracted from each article for the subsequent analysis included title, date of publication, total citations, average citations per year (ACY), journal name, first author, institutions, themes, level of evidence, and keywords. Results The total number of citations was 29,629. The date of publication ranged from 1975 to 2015. A majority of the articles originated from the United States (58%) and were published in the 1990s (32%) and 2000s (48%). The mean ACY was 18.43 ± 9.51. Of the selected articles, nearly one-half were published in the American Journal of Sports Medicine (42%). The most prolific co-author and first author were Freddie H. Fu (n = 13) and K. Donald Shelbourne (n = 5), respectively. The most productive institution was the University of Pittsburgh (14%). Material comparison (19%) and technique comparison (16%) were the 2 most popular themes. More than one-quarter of articles were level 4 evidence (37%). Moreover, the keywords ACL, ACL reconstruction, ACL rupture, knee joint, knee injuries, and human showed the highest degree of centrality. Conclusion By analyzing the characteristics of articles, this study demonstrated that ACLR is a growing and popular area of research, with the focus of research varying through timeline trends. Studies on anatomic reconstruction and biomechanics might be areas of future trends.
Collapse
Affiliation(s)
- Ning Tang
- Department of Orthopaedic Surgery, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Wenchao Zhang
- Department of Orthopaedic Surgery, The Second Xiangya Hospital, Central South University, Changsha, China
| | | | - Yang Su
- Department of Orthopaedic Surgery, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Tianlong Huang
- Department of Orthopaedic Surgery, The Second Xiangya Hospital, Central South University, Changsha, China
| |
Collapse
|
|
39
|
Li HZ, Yu C, Zhang ZT, Yan S, Liao YJ, Lu DF. Arthroscopic Reconstruction of Posterior Cruciate Ligament with Embedded Tibial Tendon Bolt. Orthop Surg 2021; 13:592-598. [PMID: 33474839 PMCID: PMC7957385 DOI: 10.1111/os.12855] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 09/18/2020] [Accepted: 10/14/2020] [Indexed: 11/28/2022] Open
Abstract
OBJECTIVE To evaluate the effect of newly designed arthroscopic reconstruction of posterior cruciate ligament (PCL) using tibial tendon bolt. METHODS The effects of embedded tendon pin were observed by X-ray of knee joint. From October 2010 to September 2015, 51 PCL injury patients who met the inclusion criteria were enrolled in this retrospective study. The arthroscopically assisted reconstruction of the PCL with tibial tendon bolt was performed on all patients. Visual Analog Scale (VAS) pain score, Tegner activity score, Lysholm score, International Knee Documentation Committee (IKDC) assessment, posterior drawer test (PDT), and KT-1000 activity score were evaluated preoperatively and at 1-year postoperative and 3-year postoperative. RESULTS The preoperative, 1-year postoperative, and 3-year postoperative IKDC score (15.8% ± 14.8%, 89.6% ± 5.8%, and 86.8% ± 5.4%), Lysholm score (17.4 ± 10.7, 91.2 ± 2.8, and 88.2 ± 3.1), VAS score (5.8 ± 1.2, 1.3 ± 0.5, and 0.6 ± 0.5), Tegner activity score (1.2 ± 0.8, 8.1 ± 0.8, and 7.4 ± 0.8), and KT-1000 score (15.6 ± 3.6, 4.5 ± 2.4, and 5.4 ± 1.8) were obtained. There were significant differences in these outcomes among preoperative, 1-year postoperative, and 3-year postoperative (all P < 0.0001). After 1- and 3-year surgery, 31 (60.8%) and 26 (51.0%) patients had the negative PDT, indicating that the PCL injury was improved. There were no postoperative complications. CONCLUSION The application of tendon pin fixed by tibial inlay 8-shaped tibial tunnel to reconstruct PCL was an effective, simple, and safe surgical procedure for PCL injury.
Collapse
Affiliation(s)
- Hua-Zhe Li
- Department of Orthopaedics, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China.,Heilongjiang Academy of Medical Sciences, Harbin, China
| | - Cong Yu
- Department of Orthopaedics, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Zhi-Tao Zhang
- Department of Orthopaedics, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China.,Heilongjiang Academy of Medical Sciences, Harbin, China
| | - Shi Yan
- Department of Orthopaedics, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Yun-Jian Liao
- Department of Orthopaedics, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China.,Heilongjiang Academy of Medical Sciences, Harbin, China
| | - Dai-Feng Lu
- Department of Orthopaedics, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China.,Heilongjiang Academy of Medical Sciences, Harbin, China
| |
Collapse
|
|
40
|
Moorthy V, Sayampanathan AA, Tan AHC. Superior Postoperative Stability and Functional Outcomes With Anteromedial Versus Transtibial Technique of Single-Bundle Autologous Hamstring Anterior Cruciate Ligament Reconstruction: A Meta-analysis of Prospective Randomized Controlled Trials. Arthroscopy 2021; 37:328-337. [PMID: 32721544 DOI: 10.1016/j.arthro.2020.07.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 07/13/2020] [Accepted: 07/16/2020] [Indexed: 02/08/2023]
Abstract
PURPOSE The aim of this meta-analysis was to compare the postoperative stability and functional outcomes of anteromedial (AM)- and transtibial (TT)-based single-bundle hamstring anterior cruciate ligament (ACL) reconstruction techniques. METHODS A meta-analysis comparing the outcomes of single-bundle hamstring ACL reconstruction using the AM and TT techniques was performed. Prospective randomized controlled trials identified from searches of PubMed, Cochrane, and Embase were included in this review. The outcome measures analyzed included postoperative Lachman test and pivot-shift test results, side-to-side difference, International Knee Documentation Committee (IKDC) score, Lysholm score, and Tegner activity score. RESULTS A total of 7 randomized controlled trials (654 patients) were included in this review. The AM technique, compared with the TT technique, resulted in superior postoperative stability based on the negative Lachman test rate (risk ratio [RR], 1.12; 95% confidence interval [CI], 1.01 to 1.24; P = .03; 95% prediction interval [PI], 0.32 to 3.46), negative pivot-shift test rate (RR, 1.16; 95% CI, 1.06 to 1.28; P = .002; 95% PI, 0.40 to 2.88), and side-to-side difference (weighted mean difference [WMD], -0.32 mm; 95% CI, -0.48 to -0.16; P < .0001; 95% PI, -0.55 to -0.09). Likewise, the AM technique contributed to superior postoperative functional outcomes based on the proportion of IKDC grade A findings (RR, 1.16; 95% CI, 1.02 to 1.32; P = .03; 95% PI, 0.40 to 2.83) and the Lysholm score (WMD, 0.82; 95% CI, 0.23 to 1.41; P = .007; 95% PI, -0.22 to 1.86). However, the AM and TT techniques had comparable subjective IKDC scores (WMD, 0.98; 95% CI, -0.91 to 2.88; P = .31; 95% PI, -3.18 to 5.14) and Tegner activity scores (WMD, 0.32; 95% CI, -0.23 to 0.86; P = .25; 95% PI, -3.84 to 4.48). CONCLUSIONS The AM method of single-bundle hamstring ACL reconstruction results in superior postoperative stability and functional outcomes compared with the TT method. LEVEL OF EVIDENCE Level I, systematic review of Level I studies.
Collapse
Affiliation(s)
- Vikaesh Moorthy
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore.
| | | | | |
Collapse
|
|
41
|
Stone AV, Chahla J, Manderle BJ, Beletsky A, Bush-Joseph CA, Verma NN. ACL Reconstruction Graft Angle and Outcomes: Transtibial vs Anteromedial Reconstruction. HSS J 2020; 16:256-263. [PMID: 33380955 PMCID: PMC7749890 DOI: 10.1007/s11420-019-09707-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Accepted: 07/01/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND The importance of creating an anatomic anterior cruciate ligament (ACL) reconstruction has been receiving significant attention. The best technique by which to achieve this anatomic reconstruction continues to be debated. The two most common methods are the transtibial (TT) and anteromedial (AM) techniques. Each has its advantages and disadvantages, and the literature comparing the two remains uncertain. QUESTIONS/PURPOSES In this prospective comparative study, we aimed to compare the ACL graft and tunnel angles achieved using the anatomic transtibial (TT) and anteromedial (AM) techniques; compare the ACL graft and tunnel angles in knees that have undergone ACL reconstruction and knees with intact ACLs; and determine whether differences in the graft or tunnel angle produce differences in clinical outcomes, as measured using both physical exam and patient-reported outcomes, after ACL reconstruction. METHODS Patients who underwent primary ACL reconstruction with bone-tendon-bone grafts using a TT or AM technique were included. Femoral graft angle (FGA), tibial graft angle (TGA), and sagittal orientation of the reconstructed ACL and contralateral native ACL were measured on post-operative magnetic resonance imaging. Post-operatively, patients underwent measurement of knee stability and completed the Knee Injury and Osteoarthritis Outcome Score (KOOS) survey. RESULTS Twenty-nine patients were enrolled (AM group, 14; TT group, 15); at follow-up, KOOS data were available for 26 patients (13 in each group). There were no differences in sagittal ACL graft angle between groups or in comparison with the normal knee. The FGA was more vertical after TT reconstructions; the TGA was comparable between groups. There were no significant differences in 2-year post-operative physical exam measurements or in KOOS scores. CONCLUSION Anatomic ACL angle was restored after reconstruction with both the TT and AM techniques, despite different FGAs. No significant differences in clinical outcome were noted between groups on physical exam or KOOS at 2 years after surgery. These results suggest that TT reconstruction results in a graft position similar to that seen in AM reconstruction and that the location of the intra-articular tunnel aperture matters more than the orientation of the tunnel.
Collapse
Affiliation(s)
- Austin V. Stone
- grid.266539.d0000 0004 1936 8438Department of Orthopaedic Surgery, University of Kentucky, Lexington, KY USA
| | - Jorge Chahla
- grid.240684.c0000 0001 0705 3621Division of Sports Medicine, Midwest Orthopaedics at Rush, Rush University Medical Center, 1611 W Harrison St., Chicago, IL 60616 USA
| | - Brandon J. Manderle
- grid.240684.c0000 0001 0705 3621Division of Sports Medicine, Midwest Orthopaedics at Rush, Rush University Medical Center, 1611 W Harrison St., Chicago, IL 60616 USA
| | - Alexander Beletsky
- grid.240684.c0000 0001 0705 3621Division of Sports Medicine, Midwest Orthopaedics at Rush, Rush University Medical Center, 1611 W Harrison St., Chicago, IL 60616 USA
| | - Charles A. Bush-Joseph
- grid.240684.c0000 0001 0705 3621Division of Sports Medicine, Midwest Orthopaedics at Rush, Rush University Medical Center, 1611 W Harrison St., Chicago, IL 60616 USA
| | - Nikhil N. Verma
- grid.240684.c0000 0001 0705 3621Division of Sports Medicine, Midwest Orthopaedics at Rush, Rush University Medical Center, 1611 W Harrison St., Chicago, IL 60616 USA
| |
Collapse
|
|
42
|
Vignos MF, Smith CR, Roth JD, Kaiser JM, Baer GS, Kijowski R, Thelen DG. Anterior Cruciate Ligament Graft Tunnel Placement and Graft Angle Are Primary Determinants of Internal Knee Mechanics After Reconstructive Surgery. Am J Sports Med 2020; 48:3503-3514. [PMID: 33175559 PMCID: PMC8374934 DOI: 10.1177/0363546520966721] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Graft placement is a modifiable and often discussed surgical factor in anterior cruciate ligament (ACL) reconstruction (ACLR). However, the sensitivity of functional knee mechanics to variability in graft placement is not well understood. PURPOSE To (1) investigate the relationship of ACL graft tunnel location and graft angle with tibiofemoral kinematics in patients with ACLR, (2) compare experimentally measured relationships with those observed with a computational model to assess the predictive capabilities of the model, and (3) use the computational model to determine the effect of varying ACL graft tunnel placement on tibiofemoral joint mechanics during walking. STUDY DESIGN Controlled laboratory study. METHODS Eighteen participants who had undergone ACLR were tested. Bilateral ACL footprint location and graft angle were assessed using magnetic resonance imaging (MRI). Bilateral knee laxity was assessed at the completion of rehabilitation. Dynamic MRI was used to measure tibiofemoral kinematics and cartilage contact during active knee flexion-extension. Additionally, a total of 500 virtual ACLR models were created from a nominal computational knee model by varying ACL footprint locations, graft stiffness, and initial tension. Laxity tests, active knee extension, and walking were simulated with each virtual ACLR model. Linear regressions were performed between internal knee mechanics and ACL graft tunnel locations and angles for the patients with ACLR and the virtual ACLR models. RESULTS Static and dynamic MRI revealed that a more vertical graft in the sagittal plane was significantly related (P < .05) to a greater laxity compliance index (R2 = 0.40) and greater anterior tibial translation and internal tibial rotation during active knee extension (R2 = 0.22 and 0.23, respectively). Similarly, knee extension simulations with the virtual ACLR models revealed that a more vertical graft led to greater laxity compliance index, anterior translation, and internal rotation (R2 = 0.56, 0.26, and 0.13). These effects extended to simulations of walking, with a more vertical ACL graft inducing greater anterior tibial translation, ACL loading, and posterior migration of contact on the tibial plateaus. CONCLUSION This study provides clinical evidence from patients who underwent ACLR and from complementary modeling that functional postoperative knee mechanics are sensitive to graft tunnel locations and graft angle. Of the factors studied, the sagittal angle of the ACL was particularly influential on knee mechanics. CLINICAL RELEVANCE Early-onset osteoarthritis from altered cartilage loading after ACLR is common. This study shows that postoperative cartilage loading is sensitive to graft angle. Therefore, variability in graft tunnel placement resulting in small deviations from the anatomic ACL angle might contribute to the elevated risk of osteoarthritis after ACLR.
Collapse
Affiliation(s)
- Michael F. Vignos
- Department of Mechanical Engineering, University of Wisconsin – Madison 1513 University Avenue, Madison, WI, USA 53706
| | - Colin R. Smith
- Department of Mechanical Engineering, University of Wisconsin – Madison 1513 University Avenue, Madison, WI, USA 53706
| | - Joshua D. Roth
- Department of Mechanical Engineering, University of Wisconsin – Madison1513 University Avenue, Madison, WI, USA 53706
| | - Jarred M. Kaiser
- Department of Mechanical Engineering, University of Wisconsin – Madison 1513 University Avenue, Madison, WI, USA 53706
| | - Geoffrey S. Baer
- Department of Orthopedics and Rehabilitation, University of Wisconsin - Madison, 1685 Highland Avenue, Madison, WI, USA 53705
| | - Richard Kijowski
- Department of Radiology, University of Wisconsin - Madison, 600 Highland Avenue, Madison, WI 53792
| | - Darryl G. Thelen
- Department of Mechanical Engineering, University of Wisconsin – Madison 1513 University Avenue, Madison, WI, USA 53706
| |
Collapse
|
|
43
|
Abdul W, Guro R, Jawad Z, Kotwal R, Chandratreya A. Clinical outcomes of primary anatomic all-inside Anterior Cruciate Ligament reconstruction using the TransLateral technique: A minimum one-year follow-up study. Knee 2020; 27:1753-1763. [PMID: 33197814 DOI: 10.1016/j.knee.2020.09.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 07/14/2020] [Accepted: 09/14/2020] [Indexed: 02/02/2023]
Abstract
BACKGROUND Anatomic all-inside Anterior Cruciate Ligament (ACL) reconstruction using the TransLateral technique is relatively new. This technique utilises single tendon autograft and instruments permitting inside-to-out drilling to create retrograde sockets. Few studies have investigated clinical outcomes following this technique. We investigate clinical outcomes in patients who underwent primary anatomic all-inside ACL reconstruction using the TransLateral technique with a minimum one-year follow-up. METHODS Interrogation of our prospectively maintained database identified patients who underwent surgery from June 2013 to December 2017. Patients were followed up clinically and using patient-reported outcome measures (PROMS) including EQ-5D, KOOS, IKDC and Tegner scores from the National Ligament Registry. Paired two-tailed Student t-test was used to assess for clinical significance. RESULTS One hundred forty-one cases with a mean age of 30 years (range 16.0-60.2) and mean follow-up of 17.4 months (12.1-75.2) were included. Grafts included isolated quadrupled semitendinosus (n = 115) and both quadrupled semitendinosus and gracilis (n = 26). One hundred and two patients (72.3%) had complete peri-operative PROMS. Mean increases in EQ-5D VAS and IKDC scores were 18.9 and 29.2 points (p < 0.001). Significant peri-operative improvements were observed for all KOOS domains (p < 0.001). Median Tegner activity score increased by two levels (p < 0.001). Incidence of graft re-rupture was 5.7% (n = 8), all were following significant knee trauma and seven cases were mid-bundle femoral tunnel placements. CONCLUSIONS All-inside ACL reconstruction using the TransLateral technique demonstrates good clinical and functional outcomes with low complication and failure rate. Mid-bundle femoral tunnel placements have been abandoned in favour of placement deep within the anteromedial bundle footprint.
Collapse
Affiliation(s)
- Wahid Abdul
- Department of Trauma & Orthopaedics, Princess of Wales Hospital, Bridgend CF31 1RQ, Wales, United Kingdom.
| | - Randy Guro
- Department of Trauma & Orthopaedics, Princess of Wales Hospital, Bridgend CF31 1RQ, Wales, United Kingdom
| | - Zayd Jawad
- Department of Trauma & Orthopaedics, Princess of Wales Hospital, Bridgend CF31 1RQ, Wales, United Kingdom
| | - Rahul Kotwal
- Department of Trauma & Orthopaedics, Princess of Wales Hospital, Bridgend CF31 1RQ, Wales, United Kingdom
| | - Amit Chandratreya
- Department of Trauma & Orthopaedics, Princess of Wales Hospital, Bridgend CF31 1RQ, Wales, United Kingdom
| |
Collapse
|
|
44
|
Çiloğlu O, Çiçek H, Yılmaz A, Özalay M, Söker G, Leblebici B. Comparison of Clinical and Radiological Parameters with Two Different Surgical Methods for Anterior Cruciate Ligament Reconstruction. J Knee Surg 2020; 33:938-946. [PMID: 32392610 DOI: 10.1055/s-0040-1710363] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
This study compared the clinical and radiological findings of nonanatomic transtibial (TT) technique with intraspongious fixation and anatomical anteromedial portal (AMP) technique with extracortical button implant in anterior cruciate ligament (ACL) reconstruction. A total of 54 patients with isolated ACL rupture were included in this prospective study. The patients who had the intraspongious fixation by nonanatomical TT technique were allocated to Group 1 (n = 27). The patients with extracortical fixation by anatomical AMP technique were placed in Group 2 (n = 27). The clinical scores of the patients were evaluated with the International Knee Documentation Committee Evaluation Form, Tegner activity score, and Lysholm II Functional Scoring. The tibial and femoral tunnels were evaluated with three-dimensional computed tomography. The kinematic examinations were performed with a Biodex System 3 Pro isokinetic dynamometer. There was no significant difference between the groups in terms of demographic data (p > 0.05). The postoperative clinical scores improved significantly in both the groups compared with the preoperative levels (p = 0.001), but there was no significant difference in the postoperative clinical scores between the groups (p > 0.05). In the extension and flexion of 60 to 180 degrees/s, the peak torque and the peak torque/body weight values of the repaired knee to intact knee ratios showed significant differences in favor of Group 2 (p = 0.001). In both the groups, no significant difference was found between the mean extent of the tunnel enlargement (p > 0.05). The mean tunnel height was significantly greater in Group 1 (45% ± 9.86 vs. 34.11% ± 10.0%) (p = 0.001). When the localization of the tunnel enlargements (proximal-middle-distal) was examined, a significant difference was found between the groups (p = 0.001). Although the AMP technique, which is a more anatomic reconstruction, had an advantage with regard to tunnel enlargement and the isokinetic muscle studies, there was no difference between the two techniques in terms of the clinical results.
Collapse
Affiliation(s)
- Osman Çiloğlu
- Department of Orthopedics and Traumatology, Adana City Training and Research Hospital, Adana, Turkey
| | - Hakan Çiçek
- Department of Orthopedics and Traumatology, Adana City Training and Research Hospital, Adana, Turkey
| | - Ahmet Yılmaz
- Department of Orthopedics and Traumatology, Adana City Training and Research Hospital, Adana, Turkey
| | - Metin Özalay
- Department of Orthopedics and Traumatology, Baskent University Hospital, Adana, Turkey
| | - Gökhan Söker
- Department of Radiology, Adana City Training and Research Hospital, Adana, Turkey
| | - Berrin Leblebici
- Department of Physical Medicine and Rehabilitation, Baskent University Hospital, Adana, Turkey
| |
Collapse
|
|
45
|
Prado-Nóvoa M, Pérez-Blanca A, Espejo-Reina A, Lombardo-Torre M, Ezquerro-Juanco F, Espejo-Baena A. Assessment of fixation for anterior cruciate ligament reconstruction using oversized suspensory devices on full-length femoral tunnels. Clin Biomech (Bristol, Avon) 2020; 76:105008. [PMID: 32413774 DOI: 10.1016/j.clinbiomech.2020.105008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 02/13/2020] [Accepted: 03/27/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND In ACL repair, full-length single-diameter tunnels facilitate anatomic femoral fixation with suspensory devices, especially with outside-in techniques, and are required after accidental cortical perforation. With tunnel diameters over 6 mm, fixation resistance using regular suspensory devices may not suffice. Oversized cortical footprint devices could be a solution to guarantee fixation performance in larger tunnel diameters. This study aims to assess the biomechanical properties of ACL femoral fixation provided by two enlarged suspensory devices of similar characteristics, a fixed loop (G-Lok™ with G-Lok-XL™) and an adjustable loop (ProCinch™ with G-Lok-XL™), resting on a full-length 9 mm diameter tunnel compared to the widely accepted regular fixed-loop device (G-Lok™) on a socket tunnel. METHODS Twenty-seven fresh frozen porcine femurs and flexor digitorum profundus tendons were randomly assigned to a study group depending on the fixation method used (N = 9). Graft-femur constructs were subjected to a traction cyclic test (5000 cycles, [50-250]N load, 1 Hz) followed by a load-to-failure test (v = 1 mm/s). Residual displacement during the cyclic test and stiffness, displacements at physiological loads, ultimate load and corresponding displacement during the load-to-failure test were determined. FINDINGS No significant differences could be established for any parameter measured in the comparison between the control with the socket tunnel and the oversized fixations with full-length tunnels. INTERPRETATION ACL femoral fixation achieved in full-length single diameter tunnels by using an enlarged suspension device, both with a fixed or an adjustable loop, provide similar biomechanical properties to the gold-standard fixed-loop device in a socket tunnel. Therefore, its clinical use may be safe.
Collapse
Affiliation(s)
- María Prado-Nóvoa
- Escuela de Ingenierías Industriales, Laboratorio de Biomecánica, C/Dr. Ortíz Ramos s/n., 29071 Málaga, Spain
| | - Ana Pérez-Blanca
- Escuela de Ingenierías Industriales, Laboratorio de Biomecánica, C/Dr. Ortíz Ramos s/n., 29071 Málaga, Spain.
| | | | - Maximiano Lombardo-Torre
- Hospital Vithas Parque San Antonio, Avda Pintor Joaquin Sorolla, 2, 29016 Malaga, Spain; Hospital Universitario Virgen de la Victoria, Servicio de Traumatología y Cirugía Ortopédica, Campus de Teatinos s/n., 29010 Málaga, Spain
| | - Francisco Ezquerro-Juanco
- Escuela de Ingenierías Industriales, Laboratorio de Biomecánica, C/Dr. Ortíz Ramos s/n., 29071 Málaga, Spain
| | | |
Collapse
|
|
46
|
Abstract
A subset of patients have residual rotational laxity following anterior cruciate ligament reconstruction (ACLR) despite the evolution of ACLR techniques. In recent years, there has been increased interest in addressing residual laxity because it is associated with poor outcomes after ACLR. There is an expanding body of knowledge on the anatomy and biomechanics of the anterolateral soft tissue restraints in regard to their rotational control of the knee and this has reignited an interest in extra-articular reconstruction techniques for augmenting ACLR. Reconstruction techniques currently used can be broadly categorized as either lateral extra-articular tenodesis or anterolateral ligament reconstruction. In this review, we discuss the relevant anatomy, biomechanics, and rationale behind the indications and technique of our current extra-articular augmentation procedure.
Collapse
|
|
47
|
Techniques for Femoral Socket Creation in ACL Reconstruction. Sports Med Arthrosc Rev 2020; 28:56-65. [PMID: 32345927 DOI: 10.1097/jsa.0000000000000281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Anterior cruciate ligament (ACL) injury is common and affects a wide variety of individuals. An ACL reconstruction is the treatment of choice for patients with subjective and objective symptoms of instability and is of particular importance to cutting or pivoting athletes. With many variables involved in ACL reconstruction, femoral tunnel placement has been found to affect clinical outcomes with nonanatomic placement being identified as the most common technical error. Traditionally the femoral tunnel was created through the tibial tunnel or transtibial with the use of a guide and a rigid reaming system. Because of proximal, nonanatomic tunnel placement using the transtibial technique, the use of the anteromedial portal and outside-in drilling techniques has allowed placement of the tunnel over the femoral footprint. In this paper, we discuss the difference between the 3 techniques and the advantages and disadvantages of each. The authors then explore the clinical differences and outcomes in techniques by reviewing the relevant literature.
Collapse
|
|
48
|
Lee KB, Kwon BC, Kim JI, Lee HM, Lee JK. Anatomic femoral tunnel creation during anterior cruciate ligament reconstruction using curved dilator system. J Orthop Surg (Hong Kong) 2020; 27:2309499019840822. [PMID: 30964412 DOI: 10.1177/2309499019840822] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
PURPOSE Recently, tunnel placements in anatomic positions have been emphasized for successful restoration of knee function after anterior cruciate ligament (ACL) reconstruction. The anteromedial portal technique is considered to be more favorable than the transtibial technique for anatomic femoral tunnel placements; however, it has some technical disadvantages. To minimize these disadvantages, the authors developed the curved dilator system (CDS). The purpose of this study was to evaluate the femoral tunnel position, length, and intraoperative complications with CDS. METHODS Sixty-two consecutive patients who underwent ACL reconstruction with CDS were subjects of this study. The femoral tunnel was created using a 4.5 mm-diameter curved guide trocar and was widened in a step-by-step manner, increasing by 1 mm dilator diameter to match the graft with the knee flexed to slightly over 90°. Femoral tunnel positions were evaluated by the quadrant method from postoperative computed tomographic images. Femoral tunnel length was measured using the curved depth gauge during surgery. Complications such as posterior wall blowout and cartilage damage were checked intraoperatively. Peroneal nerve injury was observed during the hospital stay. RESULTS Femoral tunnel position was 32.7% ± 5.4% and 39.1% ± 5.9% in the superior-inferior and anterior-posterior positions, respectively. Femoral tunnel length was 39.2 ± 4.1 mm. Damage to medial femoral condyle cartilage, posterior wall blowout, and peroneal nerve injury did not occur in any case. CONCLUSION ACL reconstruction with CDS resulted in anatomic positioning of the femoral tunnel and sufficient femoral tunnel length without intraoperative complications.
Collapse
Affiliation(s)
- Kee Byoung Lee
- 1 Department of Orthopaedic Surgery, Hallym University Sacred Heart Hospital, Anyang-si, Gyeonggi-do, Korea
| | - Bong Cheol Kwon
- 1 Department of Orthopaedic Surgery, Hallym University Sacred Heart Hospital, Anyang-si, Gyeonggi-do, Korea
| | - Joong Il Kim
- 2 Department of Orthopaedic Surgery, Hallym University Kangnam Sacred Heart Hospital, Seoul, Korea
| | - Hyung-Min Lee
- 1 Department of Orthopaedic Surgery, Hallym University Sacred Heart Hospital, Anyang-si, Gyeonggi-do, Korea
| | - Joon Kyu Lee
- 1 Department of Orthopaedic Surgery, Hallym University Sacred Heart Hospital, Anyang-si, Gyeonggi-do, Korea
| |
Collapse
|
|
49
|
Insertion of Small Diameter Radiopaque Tracking Beads into the Anterior Cruciate Ligament Results in Repeatable Strain Measurement Without Affecting the Material Properties. Ann Biomed Eng 2020; 49:98-105. [PMID: 32314302 DOI: 10.1007/s10439-020-02511-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 04/10/2020] [Indexed: 10/24/2022]
Abstract
The characterization of ligamentous soft tissue properties is limited by a lack of measurement methods capable of minimally-invasively quantifying regional strain. Previous implementations of radiographic imaging and tissue-embedded radiopaque markers demonstrated promising regional strain measurements, but found error associated with non-repeatable bead positions within the tissue after load application. No study has investigated the effects of cyclic loading on the strains measured within the tissue. The purpose of this study was to quantify the effect of joint loading on strain measurement using radiopaque markers and micro-computed tomography imaging. Six cadaveric porcine femur-anterior cruciate ligament-tibia complexes were instrumented with small diameter (0.8 mm) zirconium dioxide marker beads. The compound was imaged at 10 N then at 100 N of anterior force using micro-computed tomography. The bead positions in the images were used to calculate tissue strain between the 10 and 100 N anterior joint load conditions. Up to 100 intermediate joint cycles were applied, then images were acquired again at 10 and 100 N anterior force. No statistically significant difference was found between the strains measured before and after intermediate cycling (p > 0.05). This indicates that tissue loading did not introduce statistically significant changes to strains measured in tissue tested following this methodology.
Collapse
|
|
50
|
Robinson J, Inderhaug E, Harlem T, Spalding T, Brown CH. Anterior Cruciate Ligament Femoral Tunnel Placement: An Analysis of the Intended Versus Achieved Position for 221 International High-Volume ACL Surgeons. Am J Sports Med 2020; 48:1088-1099. [PMID: 32182091 DOI: 10.1177/0363546520906158] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Femoral tunnels that are not anatomically placed within the native anterior cruciate ligament (ACL) footprint during ACL reconstruction are associated with residual instability, graft rupture, and poor clinical outcomes. Although surgeons may intend to place their femoral tunnels within the native ACL attachment, this is not always achieved. This study assesses the variation between intended and achieved femoral tunnel positions in a large cohort of experienced ACL surgeons. HYPOTHESIS The accuracy with which experienced ACL surgeons achieve their intended femoral tunnel position is dependent on viewing portal, localization strategy, and drilling technique. STUDY DESIGN Controlled laboratory study. METHODS A total of 221 surgeons indicated their intended femoral tunnel location on a true lateral radiograph of a cadaveric knee specimen and a scaled photograph. Each surgeon then arthroscopically demonstrated the femoral tunnel on the specimen. The position was captured using fluoroscopy. The Euclidean distance (the straight-line distance between 2 points) between the intended and achieved tunnel positions, referenced to a grid applied to the lateral femoral condyle, was compared. Data were analyzed according to surgeons' viewing portal (anteromedial [AM] or anterolateral [AL]), tunnel localization strategy (offset aimer, estimation from landmarks, ACL ruler, or C-arm fluoroscopy), and stated drilling technique (transtibial, AM portal, or outside-in). RESULTS Surgeons who viewed the lateral intercondylar notch wall through the AM portal were closer (mean distance, 9.5) to their intended position than those who viewed through the AL portal (mean distance, 15.1; P < .0001). By localization strategy, the mean distance between achieved and intended tunnel positions was greater for surgeons who used an offset aimer (14.5) and estimated the femoral tunnel position (12.9) than for those using a malleable ACL ruler (8.1; P < .0001) and fluoroscopy (4.3; P < .0001). Surgeons' preferred drilling technique (AM portal, transtibial, or outside-in) had no effect on distance between intended and achieved positions. However, the mean achieved position was higher in the intercondylar notch for those using transtibial drilling (P < .042). CONCLUSION Surgeons using the AM portal to view the femoral attachment site were closer to their intended tunnel position than those who viewed it with the arthroscope in the AL portal. Surgeons who used fluoroscopy to localize femoral tunnel position were the closest to their intended position. Those who used estimation or an offset aimer had the farthest distance between achieved and intended tunnel positions. CLINICAL RELEVANCE Although accurate tunnel placement can be achieved using any method, given the disparity between intended and achieved tunnel positions, it may be advisable, even for high-volume surgeons, to verify the placement of their tunnels using either fluoroscopy or a malleable ACL ruler to ensure that they achieve their intended position. Fluoroscopy may be particularly useful for cases where the native femoral stump is no longer visible and for revisions. Viewing through the AM portal is recommended to aid accuracy of tunnel placement.
Collapse
Affiliation(s)
| | - Eivind Inderhaug
- Haraldsplass Deaconess Hospital, Bergen, Norway.,University of Bergen, Norway
| | | | - Tim Spalding
- University Hospitals Coventry & Warwickshire, Coventry, UK
| | | |
Collapse
|