A prospective randomised study comparing rotating platform and fixed bearing total knee arthroplasty in a cruciate substituting design - Outcomes at two year follow-up

摘要

Background: Fixed bearing (FB) total knee replacement is a well established technique against which new techniques must be compared. Mobile bearing (MB) prostheses, in theory, reduce polyethylene wear but the literature is yet to provide evidence that they are superior in terms of function or long-term survivorship. In addition there has been no comparison of patella resurfacing on the outcome of either design. The aims of this randomised prospective study were firstly to determine whether a mobile bearing prosthesis produced better clinical outcome and range of motion at two year follow-up and secondly to assess the effect of patella resurfacing on the outcomes of both types of bearing design. Methods: Three hundred fifty-two patients were randomised into receiving either a PFC Sigma