| Procedure | Frequency | Percent |
| Open Reduction with Femoral Shortening | 38 | 3.5 |
| Isolated Open Reduction | 74 | 6.8 |
| Pelvic Osteotomy | 227 | 21 |
| Combined Pelvic and Femoral Osteotomy | 285 | 26.3 |
| Isolated Femoral Osteotomy | 456 | 42.2 |
| Total | 1081 | 100.0 |