Title: Hemiexpansive laminoplasty of cervical vertebra to reconstruct cervical posterior extensor setting
Abstract: Objective:To explore the influences of hemiexpansive laminoplasty of cervical vertebra and spinous process reconstruction with sidepostror approach on the ROM of cervical spine and axis symptom.Method:A prospective study of 120 patients with cervical spondylosis(myelopathic type) was performed,all cases were divided into two groups.60 patients(group A) were treated with hemiexpansive laminoplasty of cervical vertebra and spinous process reconstruction using side median approach,60 patients(group B) with hemiexpansive laminoplasty of cervical vertebra and resection of spinous process using posterior approach.The final evaluation between two groups was based on the cervical average ROM,axis symptom and JOA criteria.Result:The follow-up period was from 2 to 7 years,with a mean of 42 months.Cervical axis symptom could found more in group B than in group A(P0.01).According to JOA criteria,the rate of improvement was higher over 75% in the both,there was no significant differences in the fraction of improvement(P0.05) between two groups,the average lose of hyperextensive angle was 0.9° in group A,7.4° in group B,there were significant differences between two groups(P0.01).Conclusion:Hemiexpansive laminoplasty of cervial vertebra and spinous process reconstruction using side median approach is in favor of functional reconstruction of cervical posteror extensor setting,which can ensure better clinical results postoperatively.
Publication Year: 2006
Publication Date: 2006-01-01
Language: en
Type: article
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