椎管径线测量在颈椎管狭窄手术中的应用

Application of the geometry of the spinal canal in surgical operation for cervical spinal stenosis

目的探讨颈椎管狭窄术前CT下椎管径线的测量和临床应用。方法96例颈椎管狭窄患者均为男性,年龄41～73岁,平均53岁。术前对其CT片上测量到的各椎管径线换算成实际值,术中以此为依据做椎板开槽,完成椎管扩大成形。结果术后CT复查椎管矢状径明显改善,椎板开门准确无误,既无偏内又无偏外,椎管减压满意。结论颈后路双开门椎管扩大成形术术前精确的测量椎管径线,并以此指导椎板开槽是保证手术成功的关键环节。

Objective:To investigate clinical value of the geometry of the spinal canal in cervical spinal stenosis.Methods:The geometry of the spinal canal was measured on 96 patients’ computer tomography (CT) before operation.All patients were male.Their average age was 53 years (range from 41 to 73 years).Changing the numeric value of measure to practical value.Laminoplasty were completed according to the practical value.Results:The CT showed that sagittal diameter of vertebral canal increased obviously and decompression of vertebral canal were satisfactory after operation.Conclusion:Measuring the geometry of spinal canal precisely is the key for guaranteeing the success of operation and guidance of laminoplasty.