THA Complications
A 65-year-old man with a metal-on-polyethylene THA performed 12 years ago presents for routine review. He is asymptomatic. X-rays show linear polyethylene wear with the femoral head eccentric within the acetabular component and periacetabular osteolytic lesions in DeLee-Charnley zones 1 and 2. Regarding polyethylene wear and osteolysis:
Mark each as TRUE or FALSE
Polyethylene wear generates submicron particles (0.3-10 microns) that are phagocytosed by macrophage...
Linear wear rate of conventional polyethylene is approximately 0.1-0.2mm per year; wear greater than...
Osteolysis only occurs with polyethylene bearings and never with ceramic-on-ceramic or metal-on-meta...
Highly cross-linked polyethylene (HXLPE) is manufactured by gamma irradiation (5-10 Mrad) which crea...
This patient with significant osteolysis despite being asymptomatic warrants intervention to prevent...
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Click T (True) or F (False) for each option