Clinical Outcome of the Metal-on-Metal Hybrid Corin Cormet 2000 Hip Resurfacing System

Abstract This report extends the follow-up for the largest center of the first multicenter US Food and Drug Administration investigational device exemption study on metal-on-metal hip resurfacing arthroplasty up to 11 years. A single surgeon performed 373 hip resurfacing arthroplasties using the hyb...

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Bibliographic Details
Published inThe Journal of arthroplasty Vol. 27; no. 4; pp. 533 - 538.e1
Main Authors Gross, Thomas P., MD, Liu, Fei, PhD, Webb, Lee A., NP
Format Journal Article
LanguageEnglish
Published Elsevier Inc 01.04.2012
Subjects
femoral failure
hip arthroplasty
hip resurfacing
hybrid fixation
learning curve
Orthopedics
hip resurfacing
hybrid fixation
hip arthroplasty
learning curve
femoral failure
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Summary:Abstract This report extends the follow-up for the largest center of the first multicenter US Food and Drug Administration investigational device exemption study on metal-on-metal hip resurfacing arthroplasty up to 11 years. A single surgeon performed 373 hip resurfacing arthroplasties using the hybrid Corin Cormet 2000 system. The Kaplan-Meier survivorship at 11 years was 93% when revision for any reason was used as an end point and 91% if radiographic failures were included. The clinical results demonstrate an acceptable failure rate with use of this system. Loosening of the cemented femoral components was the most common source of failure and occurred at all follow-up intervals. A learning curve that persisted for at least 200 cases was confirmed. All femoral neck fractures occurred before 6 months postoperatively.
ISSN:0883-5403
1532-8406
DOI:10.1016/j.arth.2011.06.019