a. Some combination of radiculopathy
2. Pain and paresthesias in the head, neck and shoulders with little or no suggestion of radiculopathy nor abnormal physical findings. This group is the most difficult to diagnose and treat, and often requires a good physician-patient relationship to decide if surgical treatment should be undertaken in an attempt to provide relief.
Cervical spondylotic myelopathy develops in almost all patients with ≥ 30 % narrowing of the cross sectional area of the cervical spinal canal 3) (although some patients with more severe cord compression do not have myelopathy 4) 5))