Abstract
The purpose of this paper was to assess the incidence of pelvic osteolysis following the use of a one piece all polyethylene titanium plasma spray backed acetabular component a mean of 9.6 years following implantation.
The radiographs of 86 hips followed for a mean of 9.6 years were reviewed. All had primary total hips using a titanium plasma spray backed all polyethylene uncemented acetabular component. Radiographs were assessed for osteolysis in the three zones described by DeLee and Charnley.
There was no osteolysis seen in any cup in any of the zones. There were no loose cups and no obvious cup migration.
This acetabular component shows superior performance compared with all two piece cups in terms of the development of periacetabular osteolysis. The use of two piece cups should be reconsidered.
Correspondence should be addressed to Richard Komistek, PhD, International Society for Technology in Arthroplasty, PO Box 6564, Auburn, CA 95604, USA. E-mail: ista@pacbell.net
