颈椎前路手术中椎体撑开器的作用

目的：评价椎体撑开器在颈椎病前路手术中的作用。方法：对22例颈椎病患者施行前路减压。自体髂骨植骨及带锁钢板内固定手术。该组病人术中均使用椎体撑开器。随诊22例，平均随诊时间15月，观察植骨融合率，融合节段椎间高度、生理曲度维持情况，神经功能恢复情况。结果：全部节段手术后3个月内获得骨性融合。融合率100％。椎间高度及生理曲度维持满意。无脊髓及神经并发症。JOA评分由术前平均9．5分增加到术后平均14．6分。平均改善率为68％。结论：椎体撑开器有助于减压操作，提高植骨融合率，有助维持椎间高度和生理曲度。

CERVIAL VERTEBRAL DISTRACTION DEVICE IN ANTERIOR APPROACH DECOMPRESSION OF CERVICAL SPONDYLOSIS

Objective:To evaluate the effect of cervical vertebral distraction device in anterior approach decompression of cervical spondyosis.Method:22 patients with cervical spondylosis were operated on with anterior decompression,fusion with an- tologous iliac crest bone graft and fixation with cervical spine locking plated.The operation was undertaken with cervical vertebral distraction device.They were followed up with an average time of 15 months.The following information was collected to evaluated the effect of the distraction device:the fusion rate of bone graft,the height of fused segament,cervical spine lordosis and neuro- logical function.Results:All bones grafts were fused with the adjacent vertebrates in 3-month poet-operation with a fusion rate of 100%.The height of fused segamant and cervical lordsis remained wen at last follow-up evaluation.There was no neurological Complication.The average JOA scale increased from 9.5 to 14.6,with an average improving rate of 68%.Conclusion:The cervi- cal distraction device is helpful in decompression procedure,improving the fusion of bone graft and maintaining the height of fused segament and cervical lordosis.