Table 2.
Operative results and clinical evaluation findings in the after RAO and control groups
| After RAO (n = 21) | Control (n = 21) | P-value | |
|---|---|---|---|
| Operative time (min) | 172.1 ± 34.0 | 130.1 ± 23.2 | < 0.001 |
| Operative blood loss (g) | 346.8 ± 215.8 | 312.1 ± 247.9 | 0.24 |
| JOA score (preoperative) | |||
| Total (points) | 40.7 ± 9.2 | 40.2 ± 6.4 | 0.37 |
| Pain (points) | 6.7 ± 5.6 | 7.2 ± 4.5 | 0.88 |
| ROM (points) | 12.2 ± 3.1 | 11.5 ± 3.9 | 0.35 |
| Gait (points) | 10.3 ± 3.0 | 10.8 ± 2.8 | 0.88 |
| Activity of daily living (points) | 11.6 ± 2.1 | 10.7 ± 1.2 | 0.06 |
| JOA score (last follow-up) | |||
| Total (points) | 93.0 ± 3.7 | 95.6 ± 4.2 | 0.13 |
| Pain (points) | 38.5 ± 2.3 | 39.2 ± 1.9 | 0.67 |
| ROM (points) | 16.4 ± 2.1 | 17.9 ± 1.6 | 0.03 |
| Gait (points) | 19.0 ± 1.4 | 19.3 ± 2.3 | 0.46 |
| Activity of daily living (points) | 19.1 ± 1.2 | 19.2 ± 1.4 | 0.90 |
| ROM (preoperative) | |||
| Flexion (°) | 80.0 ± 13.1 | 86.6 ± 6.9 | 0.08 |
| Extension (°) | -2.2 ± 3.0 | -3.6 ± 5.1 | 0.30 |
| Abduction (°) | 19.7 ± 7.0 | 17.9 ± 9.1 | 0.50 |
| Adduction (°) | 12.2 ± 3.0 | 9.5 ± 5.8 | 0.09 |
| ROM (last follow-up) | |||
| Flexion (°) | 92.2 ± 6.8 | 99.2 ± 8.3 | 0.02 |
| Extension (°) | -0.5 ± 1.2 | -0.3 ± 1.1 | 0.16 |
| Abduction (°) | 28.6 ± 3.2 | 30.3 ± 3.4 | 0.15 |
| Adduction (°) | 9.2 ± 2.4 | 10 ± 3.2 | 0.40 |
| Bone grafting | 2 (9.5) | 0 (0) | 0.15 |
Data are presented as mean ± standard deviations or numbers (%)
RAO Rotational acetabular osteotomy, JOA Japanese Orthopedic Association, ROM Range of motion