Robinson, Raymond P Eleven-year implant survival rates of the all-polyethylene and metal-backed modular Optetrak posterior stabilized knee in bilateral simultaneous cases. [electronic resource] - The Journal of arthroplasty Dec 2011 - 1165-9 p. digital Publication Type: Journal Article; Randomized Controlled Trial ISSN: 1532-8406 Standard No.: 10.1016/j.arth.2011.01.009 doi Subjects--Topical Terms: AdultAgedAged, 80 and overArthroplasty, Replacement, Knee--instrumentationFemaleFollow-Up StudiesHumansKaplan-Meier EstimateKnee Joint--diagnostic imagingKnee ProsthesisLongitudinal StudiesMaleMetalsMiddle AgedOsteoarthritis--surgeryPolyethyleneProspective StudiesProsthesis DesignProsthesis FailureRadiographyReoperationTreatment Outcome