首都医科大学学报 ›› 2001, Vol. 22 ›› Issue (2): 150-151.

• 论著 • 上一篇    下一篇

腰椎峡部裂对腰椎水平稳定性影响的生物力学实验研究

李锦军, 赵易, 王炳强, 李东, 杨雍   

  1. 首都医科大学附属北京友谊医院骨科
  • 收稿日期:2000-01-22 修回日期:1900-01-01 出版日期:2001-04-15 发布日期:2001-04-15

Biomechanical Experiment of Spondylolysis Affecting Sagittal Horizontal Stability in Lumbar Spine

Li Jinjun, Zhao Yi, Wang Bingqiang, Li Dong, Yang Yong   

  1. Department of Orthopaedic Surgery, Beijing Friendship Hospital, Affiliate of Capital University of Medical Sciences
  • Received:2000-01-22 Revised:1900-01-01 Online:2001-04-15 Published:2001-04-15

摘要:

为探讨峡部裂对腰椎水平面稳定性的影响,将取自6具新鲜尸体标本的11个脊柱功能单位(FSU)分别在完整状态和峡部裂状态下进行剪切应力加载实验.结果:峡部裂较完整FSU水平稳定性显着下降(P<0.01).提示:峡部裂使腰椎失稳,抗剪切力能力下降,造成椎体滑脱倾向.

关键词: 峡部裂, 腰椎不稳, 生物力学

Abstract:

Human cadaveric spines were used to determine sagittal horizontal stability of spondylolysis. Eleven FSU got from six fresh cadaveric human spines were tested for intact FSU and spondylolysis by using shear force. Spondylolysis was significantly less stable than the intact spine(P<0.01). Spondylolysis makes lumbar spine unstable, reduces its ability to withstand the shear force, and mades it prone to slipper.

Key words: spondylolysis, lumbar instability, biomechanics

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