| Site of Involvement | Number (%) |
| Cervical | 6 (9.84%) |
| Thoracic | 18 (29.51%) |
| Lumbar | 20 (32.79%) |
| Sacral | 1 (1.64%) |
| Cervical + Thoracic | 4 (6.56%) |
| Cervical + Lumbar | 1 (1.64%) |
| Thoracic + Lumbar | 10 (16.67%) |
| Lumbar + Sacral | 1 (1.64%)
|