Result of surgery according to pain, disability, complications, and reinterventions.
| Clinical Results | Total (n = 114) | Discectomy + Interspinous Stabilization Device (n = 55) | Discectomy (n = 59) | P Value |
| VAS | ||||
| Preoperative, mean (SD) | 7.8 (0.7) | 7.6 (0.8) | 7.9 (0.7) | 0.08 |
| Postoperative, mean (SD) | 3.1 (2.4) | 2.7 (2.1) | 3.5 (2.6) | 0.18 |
| % reduction | 70.6% | 73.3% | 66.7% | 0.26 |
| ODI | ||||
| Preoperative, mean (SD) | 50.1 (7.9) | 50 (14) | 48 (8) | 0.47 |
| Postoperative, mean (SD) | 11.3 (17.1) | 10 (12) | 12 (24) | 0.49 |
| % reduction | 78.5% | 79.2% | 77.3% | 0.35 |
| Reinterventions, n (%) | 13 (11.4%) | 4 (7.27%) | 9 (15.25%) | 0.18 |
| Time until secondª intervention, mo, mean | 50.5 | 81.5 | 41 | 0.17 |
Abbreviations: ODI, Oswestry Disability Index; VAS, visual analog scale.