Maine Orthopaedic Review Monthly Challenge

Quiz: Test Your Knowledge of Total Hip Arthroplasty

Bruce F. Gomberg, MD; Ira Kirschenbaum, MD

Disclosures

January 11, 2017

The level of metal ions in metal-on-metal hip resurfacing arthroplasty has a correlation to the inclination of the acetabular component. De Hann, in his study of 214 patients,[6] showed that steeply inclined acetabular components, with abduction angles greater than 55º, combined with a small size of component, are likely to give rise to higher serum levels of cobalt and chromium ions due to a greater risk for edge-loading.[6,7,8]

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