Long-term Outcome for Surgically Treated Cervical Spondylotic Radiculopathy and Myelopathy

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Long-term follow-up results were examined to verify the efficacy of anterior osteophytectomy for cervical spondylotic myelopathy and radiculopathy, in particular the outcome for patients with developmentally narrow cervical canals and patients with associated ossification of the posterior longitudinal ligament (OPLL). One hundred thirty-nine patients who had undergone anterior osteophytectomy with interbody fusion between 1976 and 1990 were followed up for 1 to 22.5 years (mean 11.4 years). Overall results evaluated by the neurosurgical cervical spine scale scoring and grading showed significant improvement in both improvement score (2.7 ± 2.3) and improvement rate (52.3 ± 45.7%). Lower extremity motor function improved in 66.1% of patients, upper extremity motor function in 82.0%, and sensory/pain function in 70.5%. Improvement ranged from one to three grades. Severely affected patients showed good recovery. Outcome for patients with narrow cervical canals (41 patients, 29.5%) did not differ significantly from that for patients with normal canals (98, 70.5%). Patients with associated OPLL (32 patients, 23.0%) had approximately the same outcomes as those with only spondylosis (107, 77.0%). Fifteen patients (10.8%) underwent reoperation because of myelopathy due to disc degeneration adjacent to the fused level (11 patients) or OPLL (4 patients). Anterior osteophytectomy with interbody fusion can achieve good outcomes in patients with cervical spondylotic myelopathy and radiculopathy, regardless of the size of the spinal canal and association with OPLL.<br>

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