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What Are the Risks Accompanying the Reduced Wear Benefit of Low-clearance Hip Resurfacing
Clinical Orthopedics and Related Research, 07/31/2012
Daniel J et al. – Lower cobalt (Co) and chromium (Cr) levels suggest lower wear in the LC resurfacings in the intermediate term, but the presence of radiolucencies raises the concern that higher bearing friction is affecting implant fixation. A larger clearance than the theoretically predicted ideal may be required to allow for minor manufacturing imperfections, component deformation, and progressive changes in the in vivo lubricant.