Abstract
A new alumina matrix composite ceramic material has been thoroughly evaluated and tested for use as an additional material in the total joint replacement area. The US Food and Drug Administration has approved the material for use in ball heads articulating against polyethylene inserts. Its first clinical use in the United States was in June 2000. Since its introduction, more than 65,000 ball heads of the Alumina Matrix Composite have been implanted. To date, no single clinical failure or material related complication has been reported to the manufacturer. The substantial improvement in mechanical properties and the excellent wear behavior even under severe microseparation wear testing serve to make this material a promising new addition to the orthopedic surgical community.
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