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Number of patients per different categories that met the inclusion criteria.
| Number of patients | |
|---|---|
| Gender | |
| Male | 17 |
| Female | 16 |
| Herniation level | |
| L4/L5 | 14 |
| L5/S1 | 19 |
| Herniation side | |
| Left | 16 |
| Right | 17 |
| Surgery type | |
| Classic discectomy | 13 |
| Microdiscectomy | 20 |
