Acetabular Revision

An Acetabular Revision is surgery where the old, defective acetabular component (cup) is removed, and a new acetabular shell and liner are inserted. Screws or cages might be used to to secure the acetabular component into the pelvis, preventing the need for further revision. Cages are used when severe socket bone degeneration is present.

The cause of acetabular revisions are usually the loosening of the cup or the repeated occurrence of dislocation. The acetabular component could have loosened because of a bad fall, degenerating pelvic bone structure, or failure due to the incorrect installation. Chronic dislocation is commonly caused by the incorrect matching of component size to the patients anatomical structure. Acetabular revisions leave the current femoral component (stem) in place, and just replace the acetabular (cup) component.

Acetabular Components can be cementless or cemented, depending on the patients individual needs.