Table 2.
Clinical outcome VAS for back, leg pain and ODI.
| 1 month | STL | FEL | P-value a |
|---|---|---|---|
| VAS for back pain | 1.4 ± 1.9 | 1.5 ± 1.6 | .693 |
| VAS for leg pain | 1.8 ± 2.0 | 1.9 ± 2.0 | .988 |
| ODI | 27.0 ± 19.4 | 24.3 ± 11.7 | .919 |
| 3 months | |||
| VAS for back pain | 1.8 ± 2.0 | 2.4 ± 2.3 | .472 |
| VAS for leg pain | 1.9 ± 1.5 | 2.6 ± 2.8 | .821 |
| ODI | 22.8 ± 19.0 | 26.0 ± 18.5 | .596 |
| 6 months | |||
| VAS for back pain | 1.7 ± 1.7 | 1.3 ± 1.1 | .682 |
| VAS for leg pain | 2.0 ± 2.6 | 1.5 ± 1.6 | .984 |
| ODI | 20.4 ± 17.6 | 18.8 ± 14.0 | .984 |
| Last follow-up | |||
| VAS for back pain | 1.3 ± 1.3 | 2.0 ± 2.2 | .407 |
| VAS for leg pain | 1.6 ± 2.1 | 1.7 ± 2.1 | .649 |
| ODI | 11.6 ± 15.0 | 15.3 ± 15.3 | .220 |
| Changes after surgery | |||
| VAS for back pain | 3.6 ± 2.1 | 3.3 ± 3.4 | .776 |
| VAS for leg pain | 5.0 ± 2.6 | 5.6 ± 2.2 | .522 |
| ODI | 31.0 ± 22.6 | 36.8 ± 18.4 | .511 |
| Mean postoperative length of stay (days) | 4.8 ± 1.5 | 3.8 ± 1.8 | .033 |
| Satisfaction rate (0 – 100) | 87.1 ± 16.9 | 79.1 ± 24.8 | .343 |
| Return todaily activity (%) | 100 | 91 | |
| Recommendation to others (%) | 90 | 82 | |
aAll statistical analyses were performed by Mann– Whitney U test.
All results included in the table were expressed as mean ± standard deviation.
Abbreviations: STL, subtotal laminectomy; FEL, full-endoscopic laminotomy; VAS, visual analogue scale; ODI, Oswestry Disability Index.