Precise arthroscopic mini-trochleoplasty combined with medial patellofemoral ligament reconstruction yields comparable complications to isolated medial patellofemoral ligament reconstruction

doi:10.5312/wjo.v17.i5.118163

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World Journal of Orthopedics

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2218-5836

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Baishideng Publishing Group Inc, 7041 Koll Center Parkway, Suite 160, Pleasanton, CA 94566, USA

Retrospective Cohort Study

Copyright: ©Author(s) 2026. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial (CC BY-NC 4.0) license. No commercial re-use. See permissions. Published by Baishideng Publishing Group Inc.

World J Orthop. May 18, 2026; 17(5): 118163
Published online May 18, 2026. doi: 10.5312/wjo.v17.i5.118163

Precise arthroscopic mini-trochleoplasty combined with medial patellofemoral ligament reconstruction yields comparable complications to isolated medial patellofemoral ligament reconstruction

Hu Xu, Ming Ding, Bing-Hui Liao, Shang-Guan Lei, Chao Zheng, Ying-Chun Wang

Hu Xu, Ming Ding, Bing-Hui Liao, Shang-Guan Lei, Chao Zheng, Ying-Chun Wang, Department of Orthopaedics, The First Affiliated Hospital of Air Force Military Medical University, Sports Medicine Institution, Xi’an 710000, Shaanxi Province, China

Co-first authors: Hu Xu and Ming Ding.

Author contributions: Xu H, Ding M, Liao BH, Lei SG, Zheng C, and Wang YC developed the methodology of this study; Wang YC and Ding M contributed significantly to the data collection and parameter measurement; Liao BH, Lei SG, Zheng C, and Xu H performed patient selection and statistical analysis; Xu H, Ding M, and Wang YC drafted the manuscript; Xu H and Ding M contributed equally to this manuscript and are co-first authors. All authors edited and approved the final manuscript.

Institutional review board statement: The institutional review board approval was acquired from the Ethics Committee of the First Affiliated Hospital of the Air Force Medical University (No. KY20222161-C-1).

Informed consent statement: Exempted informed consent was obtained in this study.

Conflict-of-interest statement: All authors declare that they have no conflict of interest to disclose.

STROBE statement: The authors have read the STROBE Statement-checklist of items, and the manuscript was prepared and revised according to the STROBE Statement-checklist of items.

Data sharing statement: Anonymized sources of the Technical appendix, statistical code, and dataset are available from the corresponding author on reasonable request.

Corresponding author: Ying-Chun Wang, Chief Physician, Department of Orthopaedics, The First Affiliated Hospital of Air Force Military Medical University, Sports Medicine Institution, No. 127 Changle West Road, Xi’an 710000, Shaanxi Province, China. wangyingchun2024@126.com

Received: December 25, 2025
Revised: January 19, 2026
Accepted: February 12, 2026
Published online: May 18, 2026
Processing time: 144 Days and 9.2 Hours

Core Tip

Core Tip: Open trochleoplasty for recurrent patellar instability with trochlear dysplasia (TD) demonstrates high complication rates. Our technique combines medial patellofemoral ligament reconstruction (MPFLR) with precise arthroscopic mini-trochleoplasty, yielding good clinical outcomes, and allowing for minimally invasive correction of severe TD with complication rates similar to those of conventional MPFLR. This provides a comprehensive arthroscopic solution for recurrent patellar dislocation associated with severe TD.