Table 4.
Comparisons of the measurement parameters between the PCL injured groups with and without PD
| Variable | PCL injured with PD (n = 11) | PCL injured without PD (n = 81) | P value |
|---|---|---|---|
| Patellar lateral tilt, deg | 13.56 ± 5.70 | 13.14 ± 4.97 | 0.089 |
| Congruence angle, deg | -8.54 ± 6.21 | -12.72 ± 5.61 | 0.078 |
| Patellar height, CDI | 1.39 ± 0.17 | 1.09 ± 0.25 | 0.009 |
| Hip–knee–ankle angle, deg | 179.87 ± 2.76 | 179.70 ± 3.00 | 0.659 |
| Lateral trochlear inclination, deg | 11.54 ± 5.41 | 20.49 ± 4.15 | 0.245 |
| Trochlear facet asymmetry | 0.40 ± 0.14 | 0.65 ± 0.13 | 0.736 |
| Intercondylar notch width, mm | 19.35 ± 3.19 | 20.44 ± 2.87 | 0.465 |
| Bicondylar width, mm | 74.37 ± 6.27 | 76.21 ± 6.65 | 0.134 |
| Notch width index | 0.27 ± 0.02 | 0.27 ± 0.02 | 0.086 |
| Intercondylar notch angle, deg | 61.93 ± 7.39 | 60.84 ± 6.89 | 0.055 |
| Trochlear sulcus angle, deg | 157.70 ± 8.77 | 141.80 ± 8.78 | < 0.001 |
| Trochlear sulcus depth, mm | 3.10 ± 1.20 | 5.11 ± 1.48 | 0.003 |
| Lateral femoral condyle ratio | 0.63 ± 0.53 | 0.65 ± 0.63 | 0.658 |
| Medial femoral condyle ratio | 0.64 ± 0.43 | 0.63 ± 0.61 | 0.320 |
Data are presented as the mean ± standard deviation
Bold indicates statistical significance (P < 0.05)
PD, patellar dislocation; CDI, Caton-Deschamps Index