Comparison of fixed bearing and mobile bearing total knee arthroplasty using identical femoral component.

Background: The theoretical advantages of Mobile bearing (MB) prosthesis does not appear to be documented in terms of functional outcomes compared to Fixed bearing (FB) designs. Rarely that two identically designed knee prostheses were compared in the literature.

Objective: Compare clinical and functional results of MB and FB prostheses using identical femoral components at intermediate term follow-up.