Each patient completed the EuroQol Five-Dimensional Questionnaire (including a visual analog scale), Core Outcome Measures Index (COMI) for neck (including neck pain and shoulder/arm pain numeric rating scale [NRS]), COMI back (including back pain and buttock/leg pain NRS), Neck Disability Index, and Oswestry Disability Index preoperatively.
The NRS (0-10) value for arm pain could be reduced from 6.0 (IQR 5.7-6.8) to 2.25 (IQR 2.0-3.1) and from 5.9 (IQR 4.8-6.0) to 2.0 (IQR 1.7-2.6) for neck pain.