Wear and surface analysis of 38 mm ceramic-on-metal total hip replacements under standard and severe wear testing conditions.

Abstract

The purpose of this study was to compare the wear of zirconia-toughened alumina (ZTA) and alumina femoral heads tested against as-cast CoCrMo alloy acetabular cups under both standard and severe wear conditions. A new severe test, which included medio-lateral displacement of the head and rim impact upon relocation, was developed. This resulted in an area of… (More)

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