Preoperative and postoperative patient-reported outcomes.
| Patient-Reported Outcome | Preoperative Mean (SD) | Final Mean (SD) | Pre-Final P Value |
| Neck Disability Index | 22.33 (13.89) | 9.62 (14.10) | <0.001 |
| VAS neck | 3.49 (2.78) | 1.05 (2.24) | <0.001 |
| VAS arm | 5.22 (2.55) | 0.61 (1.74) | <0.001 |
Abbreviation: VAS, visual analog scale.
Note: Boldface indicates statistically significant findings (P < 0.05).