Table 3.
Radiographic results
| Parameter | Number |
|---|---|
| Dorr bone type | |
| A | 510 hips (81%) |
| B | 44 hips (7%) |
| C | 76 hips (12%) |
| Acetabular component position | |
| Inclination | 44.5° (38°–51°) |
| Anteversion | 23.3° (18°–28°) |
| Femoral component position | |
| Neutral | 592 hips (94%) |
| Varus | 25 hips (4%) |
| Valgus | 13 (2%) |
| Center of rotation | |
| Horizontal (mm) | 41.2 (36–48) |
| Vertical (mm) | 15.1 (13–24) |
| Femoral offset (mm) | 42.3 (36–51) |
| Abductor moment arm (mm) | 45.7 (41–85) |
| Limb-length discrepancy (mm) | 0.5 ± 0.6 (−1.3 to 1.3) |
| Radiolucent line (> 1 mm) | 0 hip (0%) |
| Migration of acetabular or femoral component | 0 hip (0%) |
| Stress shielding | |
| Grade 1 | 592 hips (94%) |
| Grade 2 | 38 hips (6%) |
| Osteolysis | 0 hip (0%) |
Ranges or percentages in parentheses.