title: Tribology considerations for hip joint articulations in relation to the "new orthopaedic patient".
abstract: The purpose of this review is to examine alternative bearings used in total hip arthroplasty (THA) and discuss the specific tribologic needs of the "New Orthopaedic Patient". As orthopaedic patients today are younger and more active, there is a clear need for hip joint implants and articulations minimising the amount of wear and guarantying better stability. Recent modern developments in tribology with highly cross-linked polyethylenes and hard-on-hard bearings allow the safe and effective use of larger diameter articulations in THA.
authors.affiliation: Zimmer GmbH, Winterthur, Switzerland. claude.rieker@zimmer.com
authors.forename: C B
authors.initials: CB
authors.lastname: Rieker