ABSTRACT
Acetabular bone defects can be encountered in primary and revision arthroplasty. Primary defects are either congenital or acquired or result from diseases that affects the bony structure of the acetabulum. These defects are associated with inflammatory disorders, especially rheumatoid arthritis, congenital hip dysplasia, trauma, osteoarthritis (protrusio acetabuli), previous surgery (acetabular fractures), and metabolic disorders, tumors, infection, or iatrogenic causes. Loss of bone stock is frequently encountered during revision arthroplasty. Aseptic loosening is associated with osteolysis and component migration resulting in damage to acetabular bone, which can be extensive, especially after multiple revisions.
