Journal
JOURNAL OF ARTHROPLASTY
Volume 15, Issue 5, Pages 627-634Publisher
CHURCHILL LIVINGSTONE INC MEDICAL PUBLISHERS
DOI: 10.1054/arth.2000.4350
Keywords
C-fit; uncemented; hip; hydroxyapatite
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Young patients at 2 separate centers received a C-Fit uncemented arthroplasty, with randomization to porous or hydroxyapatite coating. No difference in survival could be found between components that were porous or hydroxyapatite coated, with 27.5% being revised within 8 years, mainly for aseptic loosening. Acetabular augmentation screws or offset acetabular liners similarly did not affect outcome. Two of the offset liners had spun within the metal acetabular liners, with early failure. Some of the survivors showed poor clinical scores, but there was no correlation between clinical score and radiographic evidence of loosening. These results are comparable to the poorest reported survival figures in the literature for uncemented prostheses. Prosthesis coating could not be shown to affect component survival for this prosthesis.
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