Table 5.
Prefemoral fat pad edema and patellofemoral maltracking parameters
| Mean ± SD | p-value | |||
|---|---|---|---|---|
| PFPE | Controls | |||
| Lateralization of tibial tuberosity | TT-TG distance | 8.1 ± 2.7 mm | 7.6 ± 4.2 mm | 0.678 |
| TT-TG index | 0.13 ± 0.05 | 0.12 ± 0.07 | 0.496 | |
| Trochlear dysplasia | Trochlear depth | 6.4 ± 1.3 mm | 7.3 ± 1.9 mm | 0.117 |
| Lateral trochlear inclination | 22.8°±5.5° | 26.8°±4.8° | 0.014 | |
| Patella alta | ISR | 1.34 ± 0.16 | 1.10 ± 0.12 | < 0.001 |
| MISR | 2.30 ± 0.35 | 1.98 ± 0.12 | 0.004 | |
| PTI | 0.35 ± 0.15 | 0.57 ± 0.16 | 0.001 | |
| Lateral patellar tilt | Patellar tilt angle | 7.7°±4.1° | 5.3°±3.0° | 0.019 |
| Bisect offset (%) | 60.2 ± 7.9 | 54.1 ± 4.8 | 0.005 | |
Abbreviations: SD, standard deviation; TT, tibial tubercle; TG, trochlear groove; ISR, Insall-Salvati ratio; MISR, modified Insall-Salvati ratio; PTI, patellotrochlear index