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Practical considerations for volumetric wear analysis of explanted hip joints
Wear debris released from bearing surfaces has been shown to provoke negative immune responses in the recipient. Excessive wear has been linked to early failure of prostheses. Analysis using coordinate measuring machines (CMMs) can provide estimates of total volumetric material loss of explanted prostheses and can help to understand device failure. The accuracy of volumetric testing has been debated, with some investigators stating that only protocols involving hundreds of thousands of measurement points are sufficient. This paper looks to examine this assumption and to apply the findings to the clinical arena.
This article concludes that prosthetic surfaces can be analysed accurately and rapidly with currently available technologies (CMM). Given these results, the authors believe that routine analysis of explanted hip components would be a feasible and logical extension to National Joint Registries. Read more here.
Last modified: Mon, 24 Mar 2014 09:42:14 GMT