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RE: R.K. Whittaker et al., The variation in taper surface roughness for a single design effects the wear rate in total hip arthroplasty

I read this article with great interest given the subject material and the fact that is supported the interesting finding from David Langton's (1) work. However, I am very concerned about the accuracy of the measurements presented. The study uses roughness measurements to characterise the taper surfaces and cites the appropriate standards for the measurement, but the authors have failed to adhere to the standards and as such the values presented as R values may be subject to measurement errors rendering them inaccurate, which could be affecting the study's findings.This article is protected by copyright. All rights reserved