材料科学与工程学报2026，Vol.44Issue(1)：57-62,6.DOI:10.14136/j.cnki.issn1673-2812.2026.01.008
人工膝关节中超高分子量聚乙烯衬垫的失效分析
Failure Analysis on Ultra-high Molecular Weight Polyethylene Liner for Artificial Knee Joint
摘要
Abstract
An artificial knee joint liner failed after 5 years of implantation in vivo,in which there was a correlation between damage to the ultrahigh molecular weight polyethylene(UHMWPE)joint liner and the realization of joint function.In the following section,a series of characterization methods,such as micro-morphological observation,oxidation level test,and small punch test were used to analyze this artificial knee liner and speculate on the possible causes of failure.The results demonstrated that significant oxidation and varying wear were observed,along with a decrease in mechanical properties on the liner surface.Based on the results of free radical testing and infrared testing,it was inferred that the modified radiation caused an increased wear rate on the liner surface.In addition,effective solutions to these causes of failure have been proposed in order to reduce the number of revision surgeries due to prosthesis failure.关键词
超高分子量聚乙烯人工膝关节/氧化/磨损分析/失效分析Key words
Ultra-high molecular weight polyethylene artificial knee joint/Oxidation/Wear analysis/Failure analysis分类
化学化工引用本文复制引用
鲁曼丽,张文礼,沈蓉芳,王谋华..人工膝关节中超高分子量聚乙烯衬垫的失效分析[J].材料科学与工程学报,2026,44(1):57-62,6.基金项目
国家自然科学基金资助项目(12375357) （12375357）
