| 模拟腰椎前路、后路间盘摘除术T12-L5腰段脊柱应力松弛蠕变实验研究 |
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| 引用本文： | 杨昀焯,贺家宁,马洪顺.模拟腰椎前路、后路间盘摘除术T12-L5腰段脊柱应力松弛蠕变实验研究[J].生物医学工程学杂志,2002,19(3):398-401. |
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| 作者姓名： | 杨昀焯 贺家宁 马洪顺 |
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| 作者单位： | 1. 北京大学,深圳医院,深圳,518000
2. 吉林大学,南岭校区理学院,长春,130025 |
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| 摘 要： | 研究了18例新鲜尸体T12－L5腰段脊柱应力松弛，蠕变特性。测定了完整脊柱（正常组）及模拟前路（对照1组），后路手术（对照2组）腰段脊柱的应力松弛和蠕变效应，得出了在恒应变，应力条件下应力－时间曲线及数据，用回归分析的方法处理实验数据，得出了归一化应务松弛，蠕变函数及曲线，对前路间盘摘除术与后路间盘摘除术对脊柱粘弹性的影响进行分析讨论。
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| 关 键 词： | 后路间盘摘除术 腰段脊柱 应力松弛 蠕变 前路间盘摘除术 |
Experiment Study on Stress Relaxation and Creep of Spinal Lumbar Vertebrae(T12-L5) by Simulating Operations of Excising Lumbar Disc Intervertebrales by the Front Route and by the Back Route |
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| Yang Yunzhuo,He Jianing,Ma Hongshun.Experiment Study on Stress Relaxation and Creep of Spinal Lumbar Vertebrae(T12-L5) by Simulating Operations of Excising Lumbar Disc Intervertebrales by the Front Route and by the Back Route[J].Journal of Biomedical Engineering,2002,19(3):398-401. |
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| Authors: | Yang Yunzhuo He Jianing Ma Hongshun |
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| Institution: | Shenzhen Hospital, Beijing University, Shenzhen 518000. |
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| Abstract: | We have studied the characteristics of stress relaxation and creep on lumbar vertebrae(T 12-T 5) of 18 fresh corpses. We measured the stress relaxation and creep of the normal group(intact spine),the control group 1(simulating the operations by the front route)and the control group 2(simulating the operations by the back route).Then we obtained the stress?strain-time curves and data under the conditions of constant stress and strain. By using regression analysis we obtained the reduced stress relaxation and creep functions. Finally, We analyzed and discussed the effects of the operations of excising the disc intervertebrales by the front route and the back route. |
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| Keywords: | Lumbar vertebrae(T 12-L 5) Stress relaxation Creep Normal group Control group |
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