发育性颈椎管狭窄症合并颈椎后纵韧带骨化症

ABSTRACTS OF ORIGINAL ARTICLES Developmental Stenosis of Cervical Cannal Accompanied with Cervical OPLL

本文报告了发育性颈椎管狭窄症合并颈椎后纵韧带骨化症（ＯＰＬＬ）３８例，手术治疗３７例。影像学显示椎管与椎体矢状径比值最窄为０．４８：１，最宽为０．７２：１，平均０．６５：１。合并ＯＰＬＬ，其狭窄率最低为１８％，最高为６８％，平均为４１．５％。手术方法：颈前路减压＋植骨融合术１３例；颈后路减压３０例次、包括半椎板减压１４例次，全椎板减压５例，椎管成形术１１例次。随访２９例，平均随访时间２０个月。按“颈椎病脊髓功能状态评定法”进行疗效评定，术前平均２１．４５分，术后３２．３１分，平均改善率７２．０９％。

his paper reported 38 cases of developmental stenosis of cervical cannal accompanied with cervi-cal OPLL.Thirty-seven of them had been operated on.Radiographic images showed that the ratiobetween cervical cannal and cervical vertebae was 0.48:1 in the narrowest,0.72 : l in the widest,the mean ratio was 0.65 :1.The stenosis rate was 18% in the lowerest,68%in the highest, themean rate was 41.5%,Thirteen patients were operated on throgh anterior approach with bone graftfusion。 Thirty cases were decompresed from posterior approach ,included 5 laminectomy,14 semil-aminectomy and ll laminoplasty。 Twenty-nine patients were followed up ,the mean period was 20months.Surgical effects were eveluated and the mean score was 2 l.4 5 preoperatively and 3 2.31postopeatively。 The mean improvemental rate was 72. 09%, The recognization about the pathologicalchanges and the choice of operative methods for this disease were discussed.