Table 1 Comparison of baseline characteristics
From: Effect of medial open wedge high tibial osteotomy on progression of patellofemoral osteoarthritis
Variable | Non-PF OA group (n = 83) | PF OA group (n = 83) | p-Value |
|---|---|---|---|
Gender (M/F) | 23/60 | 22/61 | 0.500 |
Age (years) | 54.83 ± 6.77 | 55.79 ± 5.81 | 0.223 |
F/U duration (years) | 5.52 ± 3.07 | 5.73 ± 3.14 | 0.653 |
Range of motion (°) | 134.2 ± 8.6 | 133.3 ± 9.6 | 0.602 |
BMI (kg/m2) | 25.7 ± 3.1 | 25.1 ± 3.2 | 0.547 |
Mechanical axis (°) | 5.89 ± 2.85 | 6.05 ± 2.66 | 0.550 |
Weight-bearing line ratio | 0.23 ± 0.11 | 0.21 ± 0.12 | 0.379 |
Posterior tibial slope (°) | 9.33 ± 3.79 | 10.23 ± 3.39 | 0.307 |
Preoperative VAS | 4.57 ± 1.82 | 4.67 ± 2.35 | 0.141 |
Preoperative WOMAC | 41.41 ± 17.27 | 43.09 ± 23.69 | 0.324 |
Preoperative KSS pain | 28.22 ± 11.66 | 27.22 ± 11.08 | 0.228 |
Preoperative KSS function | 64.64 ± 17.25 | 65.68 ± 15.48 | 0.875 |
Kellgren–Lawrence grade | 0.000 | ||
Grade 0 | 56 (67.5%) | 0 (0.0%) | |
Grade 1 | 27 (32.5%) | 0 (0.0%) | |
Grade 2 | 0 (0.0%) | 60 (72.3%) | |
Grade 3 | 0 (0.0%) | 23 (27.7%) | |
Preoperative ICRS grade | 0.000 | ||
Grade 0 | 60 (72.3%) | 0 (0.0%) | |
Grade 1 | 23 (27.7%) | 2 (2.4%) | |
Grade 2 | 0 (0.0%) | 53 (63.9%) | |
Grade 3 | 0 (0.0%) | 28 (33.7%) |