Scratch-based Damage Quantification and Wear Prediction in Total Hip Arthroplasty
نویسندگان
چکیده
To date, mapping of femoral head damage on a global implant level has been limited to representation by standard surface roughness parameters, usually the average roughness, Ra. Attempts to relate average regional roughness parameters to clinical wear rates however, have proven difficult [1]. Average surface roughness alone fails to suitably describe scratch damage as observed in retrievals, because that measure is unable to distinguish between large groups of fine scratches versus one or a few severe scratches.
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