Table 1.
Comparison of the demographic and radiographic parameters between control and hip dysplasia groups
| Parameters | Control (n = 40 hips) | Hip dysplasia (n = 70 hips) | p value |
|---|---|---|---|
| Demographic parameters | |||
| Age* (years) | 68 (8.4; 46–79) | 46 (9.8; 23–63) | < 0.001 |
| Gender (male:female) | 2: 38 | 3: 67 | 1.000 |
| BMI* (kg/m2) | 22 (3.1; 15–29) | 24 (3.6; 18–37) | < 0.001 |
| Laterality (left:right) | 19: 21 | 31: 39 | 0.745 |
| Radiographic parameters | |||
| Lateral center-edge angle* (°) | 31 (3.4; 25–39) | 8.6 (6.8; −6.1 to 19) | < 0.001 |
| Acetabular roof obliquity* (°) | 6.3 (2.9; 1.0–14) | 23 (6.1; 11–38) | < 0.001 |
| Sharp angle* (°) | 40 (2.8; 32–46) | 48 (3.8; 35–59) | < 0.001 |
| Head extrusion index* (%) | 15 (5.0; 2.0–25) | 36 (7.3; 18–54) | < 0.001 |
| Acetabular depth ratio* (%) | 262 (23; 212–312) | 186 (27; 112–229) | < 0.001 |
| Coxa profunda | |||
| Touch or medial | 29 (73%) | 31 (44%) | 0.004 |
| Touch | 17 (43%) | 23 (33%) | 0.312 |
| Medial | 12 (30%) | 8 (11%) | 0.015 |
* Values are presented as mean (SD; range).