Table 5.
Regression Analysis Between Patellar Morphology Measurements and Trochlear Dysplasia Measurementsa
| Level, P Value (β) | |||
|---|---|---|---|
| Variable | Proximal | Middle | Distal |
| Width | |||
| LTI | .284 | .986 | .722 |
| LPI | .108 | .346 | .412 |
| dTT-TG | .959 | .930 | .679 |
| pTT-TG | .957 | .888 | .638 |
| Sulcus | .758 | .587 | .484 |
| M-FAB | |||
| LTI | <.001 (0.527) | .008 (0.441) | <.001 (0.599) |
| LPI | <.001 (–0.582) | <.001 (–0.638) | <.001 (–0.548) |
| dTT-TG | .002 (–0.216) | .002 (–0.246) | .020 (–0.191) |
| pTT-TG | .020 (–0.163) | .013 (–0.200) | .018 (–0.194) |
| Sulcus | .001 (–0.524) | .033 (–0.400) | .002 (–0.597) |
| L-FAB | |||
| LTI | .107 | .268 | .074 |
| LPI | .095 | .067 | .114 |
| dTT-TG | .284 | .538 | .604 |
| pTT-TG | .704 | .602 | .485 |
| Sulcus | .389 | .008 (–0.513) | .046 (–0.317) |
| M-FAC | |||
| LTI | .259 | .067 | .013 (0.209) |
| LPI | .100 | .197 | .284 |
| dTT-TG | .711 | .185 | .283 |
| pTT-TG | .234 | .071 | .104 |
| Sulcus | .238 | .134 | .010 (–0.242) |
| L-FAC | |||
| LTI | .350 | .362 | .175 |
| LPI | .638 | .644 | .630 |
| dTT-TG | .258 | .210 | .691 |
| pTT-TG | .991 | .705 | .428 |
| Sulcus | .043 (–0.210) | .071 | .126 |
adTT-TG, distal tibial tubercle–trochlear groove; L-FAB, lateral facet angle of bone; L-FAC, lateral facet angle of cartilage; LPI, lateral patellar inclination; LTI, lateral trochlear inclination; M-FAB, medial facet angle of bone; M-FAC, medial facet angle of cartilage; pTT-TG, proximal tibial tubercle–trochlear groove.