The authors conclude that spondylolysis is mainly the fatigue fracture due to locally increased stress and is contributing most by backward extension of lumbar spine.
作者认为，椎弓峡部裂实质上主要是由局部应力增高而引起的疲劳骨折，而腰椎后伸与其关系最为密切。
Objective To identify the potential relation of geometric characteristics of the lumbar spine to the isthmic spondylolysis and degenerative joints under loading.
目的：探讨腰椎形态结构变化对峡部裂性滑脱及小关节退变的作用和意义。
Methods CT appearances of spondylolysis(62 cases) and spondylolisthesis(44 cases) of the lumbar spine were reviewed.
方法回顾腰椎峡部裂（62例）并脊柱滑脱（44例）患者的CT平扫资料。
Objective To analyze the ct appearances of spondylolysis and spondylolisthesis of the lumbar spine and deepen the understanding.
目的分析腰椎峡部裂并脊柱滑脱患者的CT表现，加深认识。
Objective To evaluate the diagnostic value of CT in the spondylolysis of lumbar spine and improve the technique of CT scan.
目的探讨CT在腰椎峡部裂诊断中的临床价值及其扫描技术的改进。
Objective To evaluate the diagnostic value of CT in the spondylolysis of lumbar spine and improve the technique of CT scan.
目的探讨CT在腰椎峡部裂诊断中的临床价值及其扫描技术的改进。
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