| Type |
| Cases (n) | |
| Extra-pelvic |
|
| 45 |
| Regular |
| 43 |
|
|
| Posterior | 33 |
|
|
| Posterosuperior (Iliac) | 32 |
|
|
| Posteroinferior (Ischiatic) | 1 |
|
|
| Anterior | 10 |
|
|
| Anterosuperior (Pubic) | 5 |
|
|
| Anteroinferior (Thyroid) | 5 |
|
| Irregular (sus-acetabular) |
| 2 |
|
| Intra-pelvic |
|
| 5 |