Abstract
Acetabular bone defects are common in revision total hip arthroplasty and are usually worse than depicted on routine radiographs. These defects may be cavitary, segmental or both. For cavitary and segmental defects with more than 50% host support, our preference is to use a cementless revision acetabular component, supplemented by the use of screw fixation and morselised bone graft. For cavitary and segmental defects with less than 50% host support, the use of an anti-protrusio cage, morselised bone graft and a cemented all polyethylene socket is preferred. Our use of structural allografts is much less common. Indications would include absence of the acetabular dome or posterior column. Our preferred technique is use of the “reverse 7” distal femoral allograft. Whenever a structural allograft is used, we would reinforce this with the use of an anti-protrusio cage. This approach has yielded predictable excellent clinical results.
The abstracts were prepared by Mrs Dorothy L. Granchi, Course Coordinator. Correspondence should be addressed to her at PMB 295, 8000 Plaza Boulevard, Mentor, Ohio 44060, USA.
