Implant Selection
A 52-year-old active man requires total hip arthroplasty for end-stage osteoarthritis. He is concerned about implant longevity and wear. Discussion ensues regarding bearing surface options including metal-on-polyethylene, ceramic-on-polyethylene, ceramic-on-ceramic, and metal-on-metal bearings. Regarding bearing surfaces in total hip arthroplasty:
Mark each as TRUE or FALSE
Conventional polyethylene (UHMWPE) wear generates submicron particles that induce osteolysis via mac...
Ceramic (alumina, zirconia-toughened alumina) has excellent hardness, wettability, and scratch resis...
Conventional polyethylene has lower wear than HXLPE; HXLPE improves mechanical properties; vitamin E...
Metal-on-metal (MoM) bearings generate metal ions (cobalt, chromium) and metal debris; concerns incl...
Bearing selection considers patient age, activity level, anatomy, and surgeon experience; younger, a...
Answer the questions to see explanations
Click T (True) or F (False) for each option