| Nosology | #Spine surgeries | Percentage | 95% CI |
| Degenerative intervertebral disk and spondylosis | 768 | 52.54% | 49.98 - 55.10 |
| Neoplastic | 279 | 19.08% | 17.07 - 21.09 |
| Traumatic | 221 | 15.11% | 13.27 - 16.94 |
| Congenital | 163 | 11.14% | 9.57 - 12.75 |
| Infectious and inflammatory | 27 | 1.85% | 1.15 - 2.54 |
| *Vascular | 4 | 0.28% | 0 - 0.6 |
| Total | 1462 | 100% |
|