Table 4.
Comparison of the CT measurement values between hips with and without coxa profunda in hip dysplasia
| Parameters | Coxa profunda (−) (n = 39 hips) | Coxa profunda (+) (n = 31 hips) | p value |
|---|---|---|---|
| Acetabular opening angle | |||
| Acetabular anteversion angle (°) | 22 (4.7; 10–32) | 28 (4.1; 20–37) | < 0.001 |
| Acetabular inclination angle (°) | 48 (3.3; 42–56) | 49 (4.3; 38–61) | 0.180 |
| Cranial anteversion angle (°) | 7.2 (7.6; −6.8 to 21) | 16 (1.4; 2.2–31) | < 0.001 |
| Acetabular coverage | |||
| Anterior acetabular sector angle (°) | 44 (6.6; 28–55) | 39 (5.9; 27–52) | < 0.001 |
| Superior acetabular sector angle (°) | 100 (6.8; 87–111) | 99 (7.0; 87–114) | 0.173 |
| Posterior acetabular sector angle (°) | 89 (6.1; 71–100) | 94 (6.2; 77–107) | < 0.001 |
| Axial acetabular sector angle (°) | 133 (8.3; 116–147) | 133 (8.8; 112–153) | 0.951 |
| Acetabular depth | |||
| Coronal acetabular depth ratio (%) | 231 (37; 148–317) | 219 (43; 140–297) | 0.207 |
| Axial acetabular depth ratio (%) | 396 (41; 296–460) | 414 (34; 325–492) | 0.061 |
| Innominate rotation angles | |||
| Superior iliac angle (°) | 56 (6.1; 45–65) | 60 (5.1; 50–68) | 0.002 |
| Inferior iliac angle (°) | 69 (4.0; 62–79) | 74 (3.1; 67–82) | < 0.001 |
| Ischiopubic angle (°) | 29 (2.3; 22–33) | 31 (2.9; 25–39) | < 0.001 |
| Acetabular floor to ischial wall distance (mm) | 2.0 (1.8; −2.2 to 5.6) | −1.3 (1.5; −5.0 to 1.3) | < 0.001 |
Values are presented as mean (SD; range).