脊髓型颈椎病患者的颈椎CT测量及其临床意义

Cervical CT meas urement on patients of cervical spondylotic myelopathy and its clinical signific ance

目的:探讨颈椎CT测量对脊髓型颈椎病诊断和治疗的指导意义。方法:对2000年5月～2002年5月行颈椎前路手术的106例脊髓型颈椎病患者进行了系统的颈椎CT测量,并与术中环锯法所取骨芯的椎体矢状径进行比较;术前对颈脊髓功能进行了JOA评分。数据行统计学分析。结果:椎体矢状径的CT测量值与实体测量值无统计学差异,继发性椎管矢状径和有效椎管率均与临床的JOA评分密切相关,后者与临床相关性更高。结论:颈椎CT测量值可作为实际值应用。CT测量对预测脊髓型颈椎病的发病、判断脊髓的受压程度和避免手术并发症均有重要意义。对女性患者尤其应注意测量横突孔间距。

Objective:To discuss the role of cervical CT measurement in the diagnosis and treatment on pa-tients of cervi cal spondylotic myelopathy.Method:The systemic CT measurement was carried out on 106pa-tients of cervical spondylotic myelopathy undergone anterior cervical ope ration from May2000to May2002and the sagittal diameters of vertebral bodies by C T measurement were compared between with the measure-ment on the bone cores obt ained by trephine in operation.The grades of spinal cord lesions were evaluated according to JOA score before operation and the data were statistically analyzed .Result:There was no statistical discrepancy in the sagittal diameter of vertebr al bodies between CT measurement and the measurement in op-eration.The secondar y sagittal diameters of spinal canal and the effective cervical spinal canal rat ios were in good correlation with JOA score and the latter had the better relati vity.Conclusion:The data obtained by cer-vical CT measurement can be used as ac tual data.CT measurement has great significant in predicting the episode of cerv ical spondylotic myelopathy,estimating the degree of the compression to spinal c ord and avoid-ing some complications in operations.