Table 3.
Comparison of acetabular version, acetabular osseous support to the femoral head, coxa valga, and femoral version based on 2-D CT scans
| Variable | CMTHD group (n = 19 hips) |
DDH group (n = 45 hips) |
p value |
|---|---|---|---|
| Acetabular version (°)* | |||
| Level I | 14 (−60 to 27) | 2 (−13 to 15) | < 0.001 |
| Level II | 18 (−7 to 32) | 7 (−15 to 24) | < 0.001 |
| Level III | 22 (−7 to 31) | 12 (−7 to 31) | < 0.001 |
| Level IV | 24 (−1 to 35) | 16 (−8 to 31) | 0.001 |
| Level V | 24 (3–35) | 19 (−2 to 32) | 0.043 |
| Anterior acetabular sector angle (°)* | 30 (10–56) | 51 (22–92) | < 0.001 |
| Posterior acetabular sector angle (°)* | 80 (56–102) | 87 (72–100) | 0.007 |
| Coxa valga (femoral neck-shaft angle) (°)† | 156 (141–175) | 148 (130–168) | < 0.001 |
| Femoral version (°)* | 28 (7–47) | 22 (−21 to 46) | 0.104 |
Values are expressed as mean, with range in parentheses; * measurement based on axial 2-D CT scans; †measurement based on coronal 2-D CT scans; 2-D = two-dimensional; CMTHD = Charcot-Marie-Tooth hip dysplasia; DDH = developmental dysplasia of the hip.