Revision Arthroplasty
A 72-year-old woman presents with increasing pain in her right hip 12 years after cemented total hip arthroplasty. She denies fever or night sweats. Radiographs show well-fixed components but progressive lytic lesions around the acetabular component and in the calcar region of the femur. Laboratory studies including ESR and CRP are normal. Hip aspiration is negative for infection. Regarding aseptic loosening and osteolysis:
Mark each as TRUE or FALSE
Osteolysis is a biological response to wear debris particles (predominantly polyethylene), mediated ...
Radiographic features of aseptic loosening include progressive radiolucent lines at the bone-cement ...
Osteolysis is caused by direct mechanical wear of bone; small particles are less inflammatory than l...
Risk factors for osteolysis include conventional polyethylene (versus HXLPE which reduces wear 80-90...
Treatment depends on component stability, osteolysis extent, and patient factors; options include ob...
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Click T (True) or F (False) for each option