Cervical spondylotic myelopathy
Signs or symptoms of root involvement without spinal cord disease
Signs of spinal cord disease without difficulty in walking
Difficulty in walking without effect on employment
Difficulty in walking with effect on full-time employment
Can walk only with aid or walker
Chair-bound or bed-ridden
ReferenceWilliams KE, Paul R, Dewan Y. Functional outcome of corpectomy in cervical spondylotic myelopathy. Indian J Orthop. 2009 Apr.;43(2):205-209.