Analysis of removed autophor ceramic-on-ceramic components.
Six Autophor alumina ceramic total hip arthroplasty components (5 removed for stem loosening and 1 for cup loosening) were evaluated to determine the nature and extent of wear by direct measurement, scanning electron microscopy of wear debris, and histology. Component implantation averaged 29 months (range, 8-54 months). All components had evidence of marked wear, including gross loss of material, which increased with the duration of implantation.
Kummer
F J
FJ
Department of Bioengineering, Hospital for Joint Diseases Orthopaedic Institute, New York, NY 10003.
Stuchin
S A
SA
Frankel
V H
VH
D000328:Adult; D000535:Aluminum; D000537:Aluminum Oxide; D001672:Biocompatible Materials; D002516:Ceramics; D005260:Female; D006622:Hip Prosthesis; D006801:Humans; D008297:Male; D008875:Middle Aged; D011475:Prosthesis Failure; D013583:Synovial Membrane / Q000648:ultrastructure; D013997:Time Factors
D001672:Biocompatible Materials; D000535:Aluminum; D000537:Aluminum Oxide