PROMS at preoperative and standard postoperative periods.
| PROM | Preoperative, Mean (SD, n) | Postoperative, Mean (SD, n) | P a | |||
| 6 wk | 3 mo | 6 mo | 12 mo | |||
| NDI | 46.3 (19.8, 771) | 29.5 (20.3, 544) | 25.3 (20.8, 528) | 24.0 (21.6, 413) | 25.2 (22.3, 281) | <0.01 |
| VAS neck | 64.2 (27.5, 770) | 30.7 (28.2, 541) | 28.1 (28.6, 519) | 27.1 (27.9, 413) | 28.6 (30.3, 278) | <0.01 |
| VAS arm (right) | 42.6 (34.7, 766) | 18.9 (27.9, 541) | 18.4 (27.2, 519) | 17.4 (25.9, 413) | 20.4 (29.7, 277) | <0.01 |
| VAS arm (left) | 41.1 (33.8, 768) | 18.0 (26.7, 541) | 17.0 (26.3, 519) | 18.5 (26.4, 413) | 20.8 (28.9, 277) | <0.01 |
Abbreviations: NDI, Neck Disability Index; PROM, patient-reported outcome measure; VAS, visual analog scale.
↵a One-way analysis of variance.