Rotating vs. fixed platforms in total knee arthroplasty .
Randomized controlled trial of radiographic and patient-assessed outcomes following fixed versus rotating platform total knee arthroplasty
J Arthroplasty. 2010 Dec;25(8):1201-8.52 patients undergoing 54 cemented cruciate substituting PFC modular total knee arthroplasties were randomized to either a fixed bearing (FB) or a rotating platform (RP) implant. Patients randomized to receive a rotating platform (RP) showed equivalent outcomes when compared to a fixed bearing (FB). However, patients with rotating platform demonstrated increased activity levels.
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