| Extent of removal | Extradural | Intradural extramedullary | Intradural intramedullary | Total |
| Total | 4 | 32 | 0 | 36 (75.0%) |
| Gross total | 2 | 5 | 0 | 7 (14.5%) |
| Near total | 0 | 0 | 3 | 3 (6.2%) |
| De-bulking | 0 | 0 | 2 | 2 (4.2%) |
| Grand total | 6 | 37 | 5 | 48 (100.0%) |