Concurrent changes in disability caused by back and neck pain after lumbar spine surgery: a multigroup trajectory analysis

For most of the patients, neck pain was not a major problem, but disability due to neck pain was common. It is possible that this disproportion was real, and the patients undergoing lumbar spine surgery experienced limitations caused by neck pain. It is also possible that this was due to the similarity of the Neck Disability Index and the Oswestry Disability Index. However, it seems that postoperative changes in neck and back pain and the injury caused by either of them may be related and should be considered at least in some patient groups.