Clinical outcome measures: VAS score for arm and neck pain and NDI score.
| Outcome Measure | Preoperative | 1 mo Postoperatively | 6 mo Postoperatively | Improvement at 6 mo | P |
| VAS arm pain | 6.4 ± 0.7 | 1.3 ± 0.5 | 0.6 ± 0.5 | 92% | 0.001 |
| VAS neck pain | 3.3 ± 0.4 | 2.5 ± 0.2 | 2.0 ± 0.2 | 40% | 0.001 |
| NDI | 23.2 ± 1.95 | 11.5±2.7 | 5.7 ± 0.6 | 75% | 0.001 |
Abbreviations: NDI, neck disability index; VAS, visual analog scale.
Note: VAS and NDI scores are provided as mean ± SD.