Acetabular reconstruction in revision total hip arthroplasty: maximizing function and outcomes in protrusio and
Brian Dahl1, Christian McNeely, Brooke S Robinson
1Resident, Department of Orthopaedic Surgery, Southern Illinois University School of Medicine, Springfield, Illinois.
Abstract:
Osteolysis in the periacetabular region is a common long-term complication of total hip arthroplasty that can lead to bone loss, implant loosening, and protrusio. Several systems have been developed for classifying osteolysis and guiding treatment. Options such as bone grafting or augmentation, with exchange of the bearing surface and, in some cases, revision of the acetabular component, can be used for treatment. Most cavitary and protrusio defects can be treated with a cementless revision cup using screw fixation and grafting with morcellized bone. However, structural augmentation, custom components, or cage reconstruction may occasionally be necessary for managing larger defects with severe loss of acetabular bone stock.
