RecruitingClinical trialDegenerative Cervical Myelopathy RepositoryTo create a research repository of patients with known degenerative cervical myelopathy (DCM) and a control cohort of subjects who have non-myelopathic spinal disease. This repository will be used to assess functional and/or biological measures that may allow for improved prediction of symptomatic progression and response to treatment in patients with DCM. In addition, this repository will be used to develop a risk assessment scale to accurately predict functional outcomes following operative management of DCM.