Authors: Terence J Gioe Amit Sharma Penny Tatman Susan Mehle
Publish Date: 2010/06/22
Volume: 469, Issue: 1, Pages: 48-54
Abstract
Premium TKA components were defined as mobilebearing designs highflexion designs oxidizedzirconium designs those including moderately crosslinked polyethylene inserts or some combination Premium THAs included ceramiconceramic metalonmetal and ceramiconhighly crosslinked polyethylene designs We compared 3462 standard TKAs to 2806 premium TKAs and 868 standard THAs to 1311 premium THAs using standard statistical methodsIn this time frame premium implants did not demonstrate better survival than standard implants Revision indications for TKA did not differ and infection and instability remained contributors Longer followup is necessary to demonstrate whether premium implants add value in younger patient groupsEach author certifies that his or her institution approved the human protocol for this investigation that all investigations were conducted in conformity with ethical principles of research and that informed consent for participation in the study was obtained
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