粘弾性特性を考慮した人工膝関節の形状設計に関する研究

概要

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In the case of severely destroyed knee joint, TKA (Total Knee Arthroplasty) is indicated as surgical treatment. An ideal design of a prosthesis will provide (1) good initial and permanent fixation, (2) improvement of range of motion, and (3) excellentsurvivorship. The purpose of this study was to analyze the influence of viscoelastic property of the bone on micromotion with different tibial prostheses in TKA. The interface of the bone and a prosthesis was considered as debonded and relative displacement between prosthesis and bone was regarded as micromotion. Viscoelaastic property of the bone showed significant influence on the analysis of micromotion. The tibial prosthesis with a central stem of 60 mm length was found to exhibit less micromotion with differnt conditions. It was found to cause prosthetic loosening with less incidence.
社団法人日本機械学会の論文
2000-07-25