A follow-up study of cervical spondylosis

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We have analyzed a series of 28 cases of cervical spondylosis treated surgically: myelopathic form is 19 cases, radicular form is 5 cases, combined form is 4 cases.Twenty-one cases of cervical spondylotic myelopathy have been investigated by evoked electromyography.The following results were obtained.1. H-wave could not be elicited by 3 out of 21 cases.2. Eighteen cases were divided into 3 groups using H-wave as an index.Group 1: 9 with a high plateau level.Group 2: 3 with a high plateau level and much fluctuation.Group 3: 6 with more fluctuation and slow undulation.3. We found some correlation between the classification as above described and clinical signs in this series.4. Operatively, anterior interbody fusion may be suitable for group 1 and laminectomy for group 2 and 3.
西日本整形・災害外科学会の論文