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Patient-reported outcomes after fixed- versus mobile-bearing total knee replacement: A multi-centre randomised controlled trial using the kinemax total knee replacement

Lookup NU author(s): Karen Bettinson, Elizabeth Lingard

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Abstract

We compared patient-reported outcomes of the Kinemax fixed- and mobile-bearing total knee replacement in a multi-centre randomised controlled trial. Patients were randomised to the fixed- or the mobile-bearing prosthesis via a sealed envelope method after the bone cuts had been made in the operating theatre. Randomisation was stratified by centre and diagnosis. Patients were assessed pre-operatively and at eight to 12 weeks, one year and two years post-operatively. Validated questionnaires were used which included the Western Ontario MacMasters University, Short-Form 12, Mental Health Index-5, Knee Injury and Osteoarthritis Outcome Score for Knee-Related Quality of Life and Function in Sport and Recreation scales and a validated scale of satisfaction post-operatively. In total, 242 patients (250 knees) with a mean age of 68 years (40 to 80) were recruited from four NHS orthopaedic centres. Of these, 132 patients (54.5%) were women. No statistically significant differences could be identified in any of the patient-reported outcome scores between patients who received the fixed-bearing or the mobile-bearing knee up to two-years post-operatively. ©2008 British Editorial Society of Bone and Joint Surgery.

Publication metadata

Author(s): Wylde V, Learmonth I, Potter A, Bettinson K, Lingard E

Publication type: Article

Publication status: Published

Journal: Journal of Bone and Joint Surgery: British Volume

Year: 2008

Volume: 90

Issue: 9

Pages: 1172-1179

ISSN (print): 0301-620X

ISSN (electronic): 2044-5377

Publisher: British Editorial Society of Bone and Joint Surgery

URL: http://dx.doi.org/10.1302/0301-620X.90B9.21031

DOI: 10.1302/0301-620X.90B9.21031

PubMed id: 18757956

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