Official Journal of the Italian Society of Orthopaedics and Traumatology
Table 1 Comparative data between normal individuals and QFPS group
Variable | Control group | QFPI group | p-value* |
|---|---|---|---|
Trochlear sulcus angle (° ± SD) | 124.1 ± 1.1 | 123.2 ± 1.1 | 0.560 |
Trochlear depth (mm ± SD) | 8.24 ± 0.29 | 8.47 ± 0.23 | 0.670 |
Trochlear facet asymmetry (ratio ± SD) | 0.72 ± 0.025 | 0.71 ± 0.018 | 0.836 |
Trochlear condyle asymmetry (ratio ± SD) | 1.02 ± 0.005 | 1.02 ± 0.006 | 0.902 |
Lateral trochlear inclination angle (° ± SD) | 26.96 ± 1.01 | 28.77 ± 0.87 | 0.224 |
Patellar translation (mm ± SD) | 1.32 ± 0.44 | 1.78 ± 0.58 | 0.238 |
Patellar tilt (° ± SD) | 5.37 ± 0.75 | 3.25 ± 0.66 | 0.038 |
Lateral-to-medial facet length ratio (ratio ± SD) | 1.16 ± 0.019 | 1.13 ± 0.024 | 0.201 |
Interfacet angle (° ± SD) | 132.14 ± 1.29 | 130.66 ± 1.39 | 0.481 |
Insall–Salvati ratio (ratio ± SD) | 1.07 ± 0.02 | 1.04 ± 0.03 | 0.173 |
Patellotrochlear index (ratio ± SD) | 0.19 ± 0.015 | 0.18 ± 0.02 | 0.990 |
TT–TG distance (mm ± SD) | 10.92 ± 0.57 | 8.01 ± 0.67 | 0.004 |
Quadriceps tendon thickness (mm ± SD) | 6.32 ± 0.203 | 6.44 ± 0.191 | 0.742 |