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首页> 外文期刊>Computer Methods and Programs in Biomedicine: An International Journal Devoted to the Development, Implementation and Exchange of Computing Methodology and Software Systems in Biomedical Research and Medical Practice >The computer simulation of wear behavior appearing in total hip prosthesis.
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The computer simulation of wear behavior appearing in total hip prosthesis.

机译：髋关节假体中出现的磨损行为的计算机模拟。

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摘要

Computer algorithms are proposed for the estimation of wear appearing in artificial hip joints using finite element analysis based on the modified Archard's wear law, contact features and an analogue wear process. A pin-on-disk plate experiment is reconstructed to assess the efficiency and validity of the algorithms proposed here. Through the successful verification of wear depth and volume loss of the pin-on-disk plate as well as the artificial hip joint, the current algorithms provide significant agreement with experiments, clinical measurements and numerical calculations and are shown to be both valid and feasible. Further investigation into the effect of femoral heads with various sizes suggests that the larger femoral head may induce larger wear volume but gives a smaller wear depth and that wear depth and volume loss are apparently nonlinearly related to the femoral head diameter. It is shown that the current algorithms are useful and helpful in understanding wear behavior for alternative or new designs of artificial hip joints and even for other analogous structures.
机译：提出了一种计算机算法，用于基于修改后的Archard磨损定律，接触特征和模拟磨损过程，通过有限元分析来估算人工髋关节中出现的磨损。重建了针盘式实验，以评估此处提出的算法的效率和有效性。通过成功验证销盘固定板以及人工髋关节的磨损深度和体积损失，当前算法与实验，临床测量和数值计算具有显着一致性，并且被证明是有效和可行的。对各种尺寸的股骨头的影响的进一步研究表明，较大的股骨头可能引起较大的磨损量，但磨损深度较小，并且磨损深度和体积损失显然与股骨头直径呈非线性关系。结果表明，当前的算法对于理解人工髋关节的替代或新设计甚至其他类似结构的磨损行为是有用的和有帮助的。

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