Clinical evaluation and improvement at follow-up.
| Results (x̅ ± SD) | Improvement (%) | Wilcoxon's Z | p* | |
|---|---|---|---|---|
| JOA score Preoperatory 6 months postop 12 months postop 24 months postop Nurick Scale Preoperatory 6 months postop 12 months postop 24 months postop VAS Preoperatory 6 months postop 12 months postop 24 months postop | 8.9 ± 1.8 14 ± 0.8 14.8 ± 0.8 14.9 ± 0.5 3.5 ± 0.6 1.6 ± 0.5 1.5 ± 0.5 1.5 ± 0.5 6.9 ± 0.8 0.06 ± 0.2 0.2 ± 0.5 0.6 ± 0.7 | -- 62.8 72.8 75 -- 53.9 57.8 57.8 -- 99.1 96.3 90.1 | -- -3.52 -3.53 -3.53 -- -3.75 -3.75 -3.75 -- -3.56 -3.56 -3.57 | -- p < 0.05 p < 0.05 p < 0.05 -- p < 0.05 p < 0.05 p < 0.05 -- p < 0.05 p < 0.05 p < 0.05 |
↵* Wilcoxon´s test was used to calculate the differences between the preoperatory and postoperatory periods. Significant differences were found (p < 0.05).