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人股骨头软骨与半月板黏弹性分析

Keywords: 人股骨头软骨,人半月板,黏弹性

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Abstract:

为了了解真实人体病态与正常关节软骨组织在力学性能上的差异,做了黏弹性分析实验.对于正常组和病态组的半月板,应力松弛曲线G(t)-1nt的斜率Kt分别是-0.1179和-0.0856,G(t)的终点值Ge分别是0.5250和0.5710.对于正常组和病态组的股骨头软骨,Kr分别是-0.1014和~0.0633,Ge分别是0.5915和0.6632.对于正常组和病态组的半月板,蠕变曲线J(t)-1nt的斜率Kc分别是0.208O和0.1095,J(t)的终点值Je分别是1.9538和1.4931.对于正常组和病态组的股骨头软骨,Kc分别是0.1673和0.1207,Je分别是1.8549和1.5998.病态组标本的应力松弛和蠕变量明显比正常组低,主要原因是胶原纤维变性和蛋白多糖减少.

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