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目的 探讨腰椎退变性滑脱症的CT诊断依据和CT检查的临床价值。方法 回顾性分析41例腰椎退变性滑脱症 (前滑脱35例 ,后滑脱6例 )的CT表现。结果 椎间盘相对性相反方向膨出相邻椎体边缘 ,椎间小关节半脱位及下位椎体上缘层面椎管矢状径的改变具有CT表现的特征性 ,是CT诊断腰椎退变性滑脱症的主要依据。结论 CT不仅能诊断腰椎退变性滑脱症 ,而且能与腰椎椎弓崩裂并滑脱相鉴别 ,从而能显示硬膜囊和神经根受压迫的原因 ,对治疗方法的选择有重要意义。
Objective To investigate the CT diagnosis and clinical value of CT in the diagnosis of lumbar degenerative spondylolisthesis. Methods The CT findings of 41 patients with degenerative lumbar spondylolisthesis (35 cases before spondylolisthesis and 6 cases after spondylolisthesis) were retrospectively analyzed. Results In the opposite direction of intervertebral disc, the adjacent vertebral body bulges, the intervertebral facet joint subluxation, and the sagittal diameter of the inferior vertebral body upper sagittal plane were characteristic of CT. CT was used to diagnose lumbar degenerative spondylolisthesis mostly according. Conclusion CT can not only diagnose lumbar degenerative spondylolisthesis, but also differentiate it from lumbar spondylolysis and spondylolisthesis, which can show the reason of compression of dural sac and nerve root. It is of great significance for the choice of treatment method.