Table 4.
Quadriceps fat pad edema and patellofemoral maltracking parameters
| Mean ± SD | p-value | |||
|---|---|---|---|---|
| QFPE | Controls | |||
| Lateralization of tibial tuberosity | TT-TG distance | 7.7 ± 2.8 mm | 7.4 ± 4.1 mm | 0.773 |
| TT-TG index | 0.13 ± 0.10 | 0.12 ± 0.07 | 0.255 | |
| Trochlear dysplasia | Trochlear depth | 7.1 ± 2.2 mm | 6.6 ± 1.6 mm | 0.277 |
| Lateral trochlear inclination | 24.5°±5.5° | 24.6°±4.4° | 0.931 | |
| Patella alta | ISR | 1.16 ± 0.20 | 1.09 ± 0.13 | 0.108 |
| MISR | 2.10 ± 0.31 | 1.90 ± 0.21 | 0.161 | |
| PTI | 0.45 ± 0.13 | 0.50 ± 0.02 | 0.068 | |
| Lateral patellar tilt | Patellar tilt angle | 6.5°±3.9° | 6.2°±3.1° | 0.629 |
| Bisect offset (%) | 57.9 ± 9.1 | 55.4 ± 6.2 | 0.243 | |
Abbreviations: SD, standard deviation; TT, tibial tubercle; TG, trochlear groove; ISR, Insall-Salvati ratio; MISR, modified Insall-Salvati ratio; PTI, patellotrochlear index