Table 2.
Surgical interventions.
| Surgical complexity | Type of surgical intervention | Frequency | Percentage | Total percentage |
|---|---|---|---|---|
| Lower complexity | Ventriculoperitoneal shunt implantation | 2 | 0.7% | 48.4% |
| Peripheral nerve surgery | 4 | 1.4% | ||
| Soft tissue surgery | 2 | 0.7% | ||
| Implantation of a drug pump | 1 | 0.4% | ||
| Cranioplasty | 8 | 2.9% | ||
| Endoscopic extirpation | 23 | 8.3% | ||
| Stereotactic biopsy | 17 | 6.1% | ||
| Cervical corporectomy | 2 | 0.7% | ||
| Foraminotomy | 5 | 1.8% | ||
| Laminoplasty | 4 | 1.4% | ||
| Hemilaminectomy | 17 | 6.1% | ||
| Cervical ventral fusion | 14 | 5.1% | ||
| Laminectomy | 7 | 2.5% | ||
| Discectomy | 7 | 2.5% | ||
| Metal removal | 2 | 0.7% | ||
| Microsurgical decompression | 5 | 1.8% | ||
| Interlaminar fenestration | 14 | 5.1% | ||
| Higher complexity | Microsurgical tumor resection | 128 | 46.2% | 51.6% |
| Aneurysm clipping | 1 | 0.4% | ||
| Deep brain stimulation | 1 | 0.4% | ||
| Spondylodesis | 10 | 3.6% | ||
| Transforaminal lumbar interbody fusion (TLIF) | 3 | 1.1% |
Sample characteristics in terms of the surgical intervention, divided by complexity (lower, higher).