Revision Hip Surgery
A 72-year-old woman presents with progressive groin pain 12 years after primary THA. Radiographs show pelvic discontinuity with a superomedially migrated acetabular component. There is extensive bone loss with destruction of the superior dome and medial wall. The ischium appears intact. Infection workup including ESR, CRP, and hip aspiration is negative. CT scan confirms a large cavitary defect with loss of the anterior and posterior columns superiorly but intact ischial support. Regarding acetabular revision:
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The Paprosky classification categorizes acetabular bone loss based on remaining host bone and column...
Treatment is guided by bone loss severity: Type I and IIA can be treated with standard cementless he...
Acetabular revision always requires cemented reconstruction regardless of bone loss severity; Papros...
Pelvic discontinuity represents a complete separation of the superior and inferior hemipelvis throug...
Key principles in acetabular revision include maximizing host bone contact (minimum 50% for cementle...
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Click T (True) or F (False) for each option