Revision Hip
A 68-year-old man presents with progressive right hip pain 12 years after primary THA. Radiographs show osteolysis around a cemented polyethylene cup with migration. CT reconstruction shows a contained defect with cavitary bone loss in the superior dome but an intact rim, maintained columns, and preserved ischial and teardrop landmarks. Regarding Paprosky acetabular bone defect classification and reconstruction options:
Mark each as TRUE or FALSE
The Paprosky classification assesses acetabular defects based on migration (superior, medial, ischia...
Type IIA defects have superior migration less than 3cm with intact superior rim; Type IIB has superi...
Paprosky Type I defects require structural allograft for reconstruction; Type IIB defects always nee...
Type IIIA defects have superior migration greater than 3cm with 10 to 2 o'clock rim deficiency but i...
Reconstruction options by defect type: Type I and IIA - hemispheric uncemented cups with morcellized...
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Click T (True) or F (False) for each option