853 人工膝関節用UHMWPEの凝着に及ぼすVitamin E添加の影響(G02-4 バイオエンジニアリング(4),21世紀地球環境革命の機械工学:人・マイクロナノ・エネルギー・環境)

概要

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Osteoiysis and subsequent aseptic loosening caused by wear debris is a major problem that limits the durability of ultra high molecular weight polyethylene (UHMWPE) used for total knee arthroplasty. UHMWPE wear is extremely complex phenomenon caused by several mechanisms which are interconnected each other. The mechanisms are commonly classified into these category, (a) polymer-to-metallic adhesive wear, (b) abrasive wear due to counterface asperity and/or third-body, and (c) fatigue wear due to polymer asperity. Transfer film formation is believed to be one of the most dominant primary mechanisms of the wear process. The present study evaluated the transfer film formation of vitamin E-containing UHMWPE to the counterface to clarify the effect of vitamin E addition on wear resistance of UHMWPE.
社団法人日本機械学会の論文
2008-08-02