The JOA (Japanese Orthopedic Association) scoring system was used to evaluate the severity of myelopathy based on the degree of dysfunction in each category. The VAS (Visual Analog Scale) score was used to evaluate upper extremity pain caused by nerve root compression. The JOA and VAS score was investigated before surgery and on the postoperative 7th day, 3th month and 1st year.
Symptoms mentioned above consist of three categories: myelopathy (extremity weakness/numbness, gait instability, and bladder dysfunction), radiculopathy (upper extremity pain), and postoperative axial pain.
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