Table 1 Baseline of all recruited patients
DDH (no. = 67 hips) | Group A (no. = 33 hips) | Group B (no. = 34 hips) |
|---|---|---|
Mean age (years) | 49.2 ± 8.3 (range, 49–67) | 50.9 ± 9.1 (range, 63–33) |
Male:female | 4:27 | 6:24 |
Mean height (cm) | 157.4 ± 6.2 (range, 149–175) | 155.0 ± 6.5 (range, 145–170) |
Mean weight (kg) | 56.3 ± 6.7 (range, 43–70) | 54.8 ± 7.6 (range, 43–68) |
Mean BMI (kg/m2) | 22.8 ± 2.6 (range, 17.2–27.4) | 22.9 ± 3.3 (range, 17.3–29.7) |
Crowe classification | ||
 II | 12 | 10 |
 III | 21 | 24 |
Follow-up (months) | 85 ± 36 | 78 ± 35 |
Cup type | ||
 Pinnacle | 33 | 34 |
Stem type | ||
 Corail | 15 | 10 |
 Tri-lock | 3 | 3 |
 S-rom | 15 | 21 |
Friction couples | ||
 Ceramic-on-ceramic | 28 | 30 |
 Ceramic-on-polyethylene | 5 | 4 |
Subtrochanteric osteotomy | ||
 Yes/no | 5/28 | 6/28 |