Biomechanical, morphological, and histological analysis of early failures in hip resurfacing arthroplasty

Michael Morlock, Nicholas Bishop, Wolfgang Rüther, Günter Delling & Michael Hahn
The present revival of hip resurfacing arthroplasty may be related to an increase in early failures owing to the challenging technique of the procedure. Fifty-five retrieved implants were analysed with respect to wear, cement mantle and cement penetration, fracture and head morphology, as well as standard histology. Femoral neck fractures occurred in median after 102 days. The time to failure was shorter for older women. Major deviations from the suggested cement mantle thickness and cement...
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