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Retrospective Study
Copyright: ©Author(s) 2026.
World J Orthop. Nov 18, 2026; 17(11): 127390
Published online Nov 18, 2026. doi: 10.5312/wjo.127390
Table 1 Patient demographic data and surgical variables

Mean
Standard deviation
%
Age (years)43.917.7
< 30 years25.5
30-60 years53.1
> 60 years21.4
Operative time (minutes)102.765.7
> 90 47.4
< 9052.6
ASA class2.040.79
I25.8
II47.9
III23.0
IV3.3
BMI (kg/m2)28.36.3
< 18.52.2
18.5-25 28.2
25-3036.8
> 3032.8
Sex
Female55.4
Male44.6
Race
Asian1.9
Black5.5
Native American0.2
White55.3
Unknown/unreported37.1
Anesthesia
General84.2
Spinal2.1
MAC12.7
Regional0.7
Epidural0.3
Smoking
No86.0
Yes14.0
Steroid use
No97.6
Yes2.4
Table 2 Complications experienced
Complication
n
%
Major complications
Return to operating room160.48
Sepsis130.39
Myocardial infarction110.33
Pulmonary embolism80.24
Dehiscence60.18
Deep infection50.15
Death20.06
Cerebrovascular accident10.03
Acute renal failure10.03
Unplanned intubation00
Cardiac arrest00
Total major (including death)631.88
Minor complications
Bleeding712.12
Superficial infection180.54
Deep venous thrombosis180.54
Urinary tract infection140.42
Pneumonia20.06
Renal insufficiency10.03
Total minor1243.70
Overall complications1875.58
Table 3 Univariate and multivariate analysis, n (%)
Total (n)
Events
Univariate
Multivariate



Coefficient
95%CI
P value
Coefficient
95%CI
P value
Age (years)
< 3085335 (4.10)-0.0096-0.025 to 0.0060.237
30-60177850 (2.81)-0.0346-0.049 to -0.020< 0.0001-0.0178-0.035 to -0.0010.043
> 6071869 (9.61)0.06060.044-0.077< 0.00010.0002-0.026 to 0.0270.990
Sex (male)149252 (3.49)-0.0201-0.034 to -0.0060.006-0.0165-0.030 to -0.0030.021
Smoking46920 (4.36)-0.0039-0.024 to 0.0170.710
Steroid use797 (8.86)0.0437-0.003 to 0.0900.067
Hypertension meds70955 (7.76)0.04010.023 to 0.057< 0.0010.0115-0.008 to 0.0310.251
Hx of CHF132 (15.38)0.1083-0.006 to 0.2220.063
Hx of COPD405 (12.50)0.08000.015 to 0.1450.016-0.0037-0.068 to 0.0610.910
Dialysis21 (50.00)0.45430.164 to 0.7440.0020.2167-0.070 to 0.5030.138
Preop transfusion85 (62.50)0.58040.436 to 0.724< 0.0010.40000.256 to 0.544< 0.001
Functional status
Independent3331146 (4.38)Ref
Partially dependent178 (46.06)0.42680.328-0.526< 0.0010.28490.183-0.386< 0.001
Totally dependent10 (0.00)-0.0460-0.457-0.3650.826
Race
White184474 (4.07)Ref
Black1849 (4.89)0.0031-0.028 to 0.0340.845
Asian631 (1.59)-0.0307-0.083 to 0.0220.249
American Indian130 (0.00)-0.0462-0.160-0.0680.428
Anesthesia
General2819116 (4.11)Ref
Spinal716 (8.45)0.0394-0.010 to 0.0890.117
MAC/IV sedation42528 (6.59)0.02280.001 to 0.0440.036-0.0092-0.032 to 0.0140.430
Regional224 (18.18)0.13670.049-0.2240.0020.14250.057 to 0.2280.001
Epidural110 (0.00)-0.0461-0.170 to 0.0780.466
ASA class
186321 (2.43)Ref
2160450 (3.12)-0.0284-0.043 to -0.014< 0.0010.0016-0.015 to 0.0190.856
377154 (7.00)0.03120.014 to 0.048< 0.0010.03490.011 to 0.0580.004
410928 (25.69)0.21800.179 to 0.257< 0.0010.19300.149-0.237< 0.001
Diabetes
No3137134 (4.27)Ref
Non-insulin dependent14913 (8.72)0.04320.009 to 0.0780.0140.0075-0.028 to 0.0430.677
Insulin dependent637 (11.11)0.06640.014 to 0.1190.0130.0040-0.048 to 0.0560.879


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