Hip simulator study of wear characteristics of UHMWPE liner

用于全髋关节置换术的超高分子量聚乙烯（UHMWPE）衬垫。近年来，为了提高运动范围，衬垫厚度变薄、大直径也在不断发展。本研究采用3.5/4.0mm厚度44mm直径的PE衬垫，在标准模拟器测试条件下进行了500万次的髋关节模拟器测试。与未掺杂PE衬垫相比，0.1% α -生育酚（0.1%重量比）掺杂杯没有磨损优势。

The ultra highly molecular weight polyethylene (UHMWPE) liner used in total hip replacement. Recently, thinning of thickness and large-diameter of liner is progressing for the range of motion improved. In this study, hip simulator test had run by using 3.5/4.0mm thickness 44mm diameter PE liner under standard simulator test conditionsup to 5 million cycles. Compared to non doped PE liner, There was no wear advantage related to 0.1% alpha-tocopheral (0.1% by weight) doped cup.