Total Hip Arthroplasty
A 45-year-old active male is undergoing total hip arthroplasty for osteoarthritis. The surgeon discusses bearing surface options, explaining the trade-offs between different materials including ceramic-on-ceramic, metal-on-polyethylene, and ceramic-on-polyethylene. The patient asks about wear rates and potential complications specific to each bearing. Regarding bearing surfaces in total hip arthroplasty:
Mark each as TRUE or FALSE
Ceramic-on-ceramic bearings produce the lowest volumetric wear of all bearing couples but carry risk...
Metal-on-metal bearings have been largely abandoned for primary THA due to adverse local tissue reac...
Highly cross-linked polyethylene (XLPE) has higher wear rates than conventional polyethylene; metal-...
Ceramic-on-polyethylene (XLPE) combines the scratch resistance and low friction coefficient of ceram...
Larger femoral head sizes (36mm vs 28mm) improve stability by increasing jump distance but increase ...
Answer the questions to see explanations
Click T (True) or F (False) for each option