To examine the short term patient assessed functional results of the Journey BCS ¯(Smith & Nephew) and Triathlon ¯(Stryker Orthopaedics, Mahwah, NJ) total knee replacements when compared to the Scorpio ¯(Stryker) total knee replacement using a multi-surgeon case control design in a single centre. From September 2006 to August 2008 a total of 135 Journey and 97 Triathlon total knee replacements (TKR) were performed. 105 patients with Journey and 90 patients with Triathlon implants were available for follow-up at a minimum of 1 year, with an average of 2 years. Age and sex matched controls were obtained from our pool of patients who had had Scorpio TKR's. The same surgeons using the same approach operated on patients in both groups. All implants were posterior stabilised and all underwent patella resurfacing. All patients were seen pre-operatively and followed up post operatively in a physiotherapist led joint review clinic to assess range of motion (ROM) as well as function using the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), Oxford Knee Score (OKS) and the High Activity Arthroplasty Score (HAAS - used post operatively only).OBJECTIVE
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