| 腰椎屈伸活动对腰椎应力分布的影响 |
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| 引用本文： | 戴力场,成培来,等.腰椎屈伸活动对腰椎应力分布的影响[J].中国临床解剖学杂志,1990,8(1):36-39. |
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| 作者姓名： | 戴力场 成培来 |
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| 作者单位： | 第二军医大学附属长征医院骨科，第二军医大学附属长征医院骨科，第二军医大学附属长征医院骨科，第二军医大学附属长征医院骨科，天津理工学院机械系 上海 200003，上海 200003，上海 200003，上海 200003 |
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| 摘 要： | 用三维有限元方法建立腰椎活动节段的力学模型。结果表明,腰椎后伸时椎间盘纤维环和腰椎后部结构的应力水平明显上升,这提示腰椎的过度后伸可能是导致某些腰椎疾患的病因。
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| 关 键 词： | 腰椎 生物力学 应力分布 屈伸活动 有限元方法 |
The effect of lumbar flexion-extension motion on the stress distribution in lumbar spine |
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| Dai Liyang Xu Yinkan Zhang Wenming Tu Kaiyuan.The effect of lumbar flexion-extension motion on the stress distribution in lumbar spine[J].Chinese Journal of Clinical Anatomy,1990,8(1):36-39. |
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| Authors: | Dai Liyang Xu Yinkan Zhang Wenming Tu Kaiyuan |
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| Institution: | Dai Liyang Xu Yinkan Zhang Wenming Tu Kaiyuan. Department of Orthopaedics,Changzheng Hospital,Shanghai,200003 |
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| Abstract: | To study the distribution of stress in lumbar spine, a mechanical model of lumbar motive segment was develo- ped With three-dimensional finite ele- ment system,It was found that in ex- tension, the annulus fibrosus and the posterior element of lumbar vertebrae undertook a much higher level of str- ess than that in flexion (P<0.01). This suggests that hyperextension of lumbar spine may be of etiological significance to some lumbar disorder. |
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| Keywords: | lumbar spine biomechanics stress distribution flexion-extension motion finite element method |
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