Table 4.
Radiographic differences in males versus females
| Radiographic findings | Male | Female | ρ Value |
|---|---|---|---|
| Presence of Joint space narrowing | 29% | 11% | 0.02 |
| Presence femoral osteophytes | 22% | 2% | 0.002 |
| Number of patients with non-sphericity femoral head in AP or lateral images | 25 | 16 | 0.006 |
| Femoral head diameter (mm) | 58 | 52 | <0.001 |
| Alpha angle (degree) | 88° | 68.1° | <0.001 |
| Center of rotation relative to the tip of greater trochanter (mm) | −2.0 | 0.45 | 0.046 |
| Ilioischial-line relative to acetabular fossa (mm) | 1.53 | −0.86 | 0.001 |
| Presence herniation pits in AP or lateral images | 18% | 2% | 0.01 |
| Distance from the acetabular edge to COS (mm) | 21.9 | 17.2 | 0.039 |
| Femoral head extrusion index | 0.17 | 0.14 | 0.022 |
| Acetabular length (mm) | 75.37 | 66.64 | <0.001 |
| Mean WOMAC pain scores | 31.6 | 42.3 | 0.009 |