title: Rotaflex total knee arthroplasty: a report of two prosthetic failures at the hinge mechanism.
abstract: We present two cases of Rotaflex hinged total knee arthroplasties in which the components forming the hinge mechanism have fractured. In one case this was the high density polyethelene sleeve bush of the tibial bearing, the other case being the titanium retaining peg of the tibial component. Component failure in this design of prosthesis is previously unreported.
authors.affiliation: Department of Orthopaedics, Royal Hallamshire Hospital, Sheffield, UK.
authors.forename: J M
authors.initials: JM
authors.lastname: Wilkinson
authors.forename: D L
authors.initials: DL
authors.lastname: Douglas
mesh_terms: D000368:Aged; D005260:Female; D006801:Humans; D007720:Knee Prosthesis; D011474:Prosthesis Design; D011475:Prosthesis Failure