Table 2 Comparison of radiographic data between the patellofemoral OA progression and non-progression group
Preoperative | P value | Postoperative | P value | |||
|---|---|---|---|---|---|---|
Group P | Group N | Group P | Group N | |||
Correction angle (degrees) | 9.0 ± 2.8 | 8.7 ± 2.1 | 0.80 | |||
HKA (degrees) | 6.0 ± 4.6 varus | 5.9 ± 4.9 varus | 0.96 | 3.1 ± 2.5 valgus | 2.9 ± 2.2 valgus | 0.75 |
Percentage MA | 21.0 ± 11.6 | 23.5 ± 9.9 | 0.38 | 60.1 ± 6.5 | 60.2 ± 5.2 | 0.95 |
MPTA (degrees) | 82.5 ± 2.4 | 83.4 ± 1.5 | 0.10 | 91.7 ± 2.1 | 92.3 ± 1.5 | 0.25 |
Posterior tibial slope (degrees) | 8.6 ± 3.8 | 8.3 ± 3.2 | 0.73 | 8.4 ± 3.6 | 8.9 ± 3.6 | 0.64 |
Patellar tilt (degrees) | 9.0 ± 4.5 | 9.1 ± 5.8 | 0.90 | 7.9 ± 4.2 | 7.1 ± 5.0 | 0.57 |
Caton-Deschamps index | 0.94 ± 0.20 | 0.91 ± 0.11 | 0.51 | 0.76 ± 0.21 | 0.78 ± 0.12 | 0.63 |
TT-TG distance (mm) | 11.2 ± 2.9 | 11.5 ± 3.4 | 0.79 | 11.7 ± 3.2 | 11.4 ± 2.9 | 0.80 |