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Table 2 summary of the JOA scoring system for the assessment of myelopathy

From: Thoracic myelopathy caused by ossification of ligamentum flavum of which fluorosis as an etiology factor

neurological status

score

lower-limb motor dysfunction

 

   unable to walk

0

   Able to walk on flat floor with walking aid

1

   Able to walk up/downstairs w/handrail

2

   Lack of stability & smooth reciprocation of gait

3

   no dysfunction

4

lower-limb sensory deficit

 

   severe sensory loss or pain

0

   Mild sensory deficit

1

   no deficit

2

trunk sensory deficit

 

   severe sensory loss or pain

0

   Mild sensory deficit

1

   no deficit

2

sphincter dysfunction

 

   unable to void

0

   marked difficulty in micturition

1

   minor difficulty in micturition

2

   no dysfunction

3

  1. Total score for a healthy patient is 11.