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Table 1 Nurick classification system of myelopathy[5]

From: Operative management of a non-traumatic cervico-thoracic spondylolisthesis: a case report

Grade Description of neurologic status
0 Signs or symptoms of root involvement but without evidence of spinal cord disease
1 Signs of spinal cord disease but no difficulty in walking
2 Slight difficulty in walking which did not prevent full-time employment
3 Difficulty in walking which prevented full-time employment or the ability to do all housework, but which was not so serve as to require someone else’s help to walk
4 Able to walk only with someone else’s help or with the aid of a frame
5 Chair bound or bedridden