Association between preoperative outcomes and postoperative clinical benefit.
| Surgery Indication | PROMIS PF | PROMIS PI | NDI | |||
| Preoperative | Postoperative Improvement | Preoperative | Postoperative Improvement | Preoperative | Postoperative Improvement | |
| Radiculopathy | 39.2 (8.1) | 5.2 (8.0) | 60.4 (7.8) | −8.9 (10.8) | 29.4 (22.0) | 13.4 (17.8) |
| Myelopathy | 41.7 (7.4) | 9.0 (9.4) | 61.9 (6.0) | −10.3 (9.5) | 39.2 (2.2) | 22.2 (17.6) |
| Myeloradiculopathy | 43.0 (8.4) | 5.6 (7.2) | 59.9 (7.3) | −6.9 (9.1) | 31.6 (19.5) | 14.4 (14.5) |
Abbreviations: NDI, Neck Disability Index; PROMIS PF, Patient-Reported Outcomes Measurement Information System Physical Function; PROMIS PI, Patient-Reported Outcomes Measurement Information System Pain Interference.
Note: For Neck Disability Index, postoperative improvements reflect a decrease in score, as lower scores reflect lower disability.