A Randomized Clinical Trial of Mobile-Bearing and Fixed-Bearing (All-Poly Tibia) Cruciate Substituting Total Knee Arthroplasty Designs

Mobile-bearing total knee arthroplasty (TKA) proponents cite potential advantages of diminished backside wear and improved range of motion and/or function, but these advantages have not been demonstrated in prospective comparison. We conducted a randomized prospective clinical trial to compare a mobile-bearing and fixed-bearing cruciate-substituting TKA of the same design.