Early aseptic loosening of a modern acetabular component secondary to a change in manufacturing.
Cementless acetabular reconstruction with a hemispheric acetabular shell in primary total hip arthroplasty has shown reproducible results. Ingrowth of bone into a porous coating of beads, a titanium fiber mesh, or a hydroxylapatite-containing bioactive coating has been histologically documented. Early failures of ingrowth of an acetabular component have been reported using a threaded acetabular design. A series showing high early (<1 year) failure of ingrowth into a modern acetabular component has never before been reported. We report a series showing a 33% early loosening rate of the Sulzer Interop TM acetabular component (Sulzermedica, acquired by Zimmer, Warsaw, IN).
Blumenfeld
Thomas J
TJ
Sutter General Hospital, Sacramento, California 95816, USA.
Bargar
William L
WL
D000077:Acetabulum / Q000601:surgery*; D000328:Adult; D000368:Aged; D019644:Arthroplasty, Replacement, Hip / Q000295:instrumentation*; D020099:Coated Materials, Biocompatible; D017886:Durapatite; D005260:Female; D006622:Hip Prosthesis; D006801:Humans; D008297:Male; D008875:Middle Aged; D011474:Prosthesis Design; D011475:Prosthesis Failure; D012086:Reoperation; D014025:Titanium; D016896:Treatment Outcome
D020099:Coated Materials, Biocompatible; D017886:Durapatite; D014025:Titanium