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Laminectomy was performed on 14 patients with cervical radiculomyelopathy and ossification of the posterior longitudinal ligament (OPLL). Since 1978, simple open-door laminoplasties have been performed on 75 patients. A retrospective study was done to determine if there was any difference between the results of laminectomy and laminoplasty. Overall results of laminectomy were as follows: The preoperative Japanese Orthopaedic Association (JOA) score was 7.0 points and the postoperative score was 15.0 points. Overall results of laminoplasty were as follows: the preoperative JOA score was 7.0 points and the postoperative score was 15.0 points. The percentage improvement in laminectomy was 81.1%, and in laminoplasty was 81.4%. There was no significant difference in the results of these two procedures for the treatment of patients with cervical radiculomyelopathy and OPLL.
Nakano et al. (Fri,) studied this question.