Wear and Lysis is the Problem in Modular TKA

Description: Questions/purposes The purpose of this study was to evaluate the minimum 10 year followup of TKA performed in more active patients with OA, using modular tibial components, to determine the durability of that construct. Specifically, we determined (1) survivorship; (2) revision rates; (3) functional scores; and (4) rates of radiographic failure at a minimum 10 year followup.
Conclusion Most patients in this active patient population continued to have acceptable function although 16% underwent revision for wear and/or osteolysis. Isolated tibial insert exchange alone was performed in four of the 11 (36%) revised knees. These data should provide comparison for total knee arthroplasties performed in younger patients with newer designs and newer bearing materials.
Wear and Lysis is the Problem in Modular TKA in the Young OA Patient at 10 Years
Andrew N. Odland, John J. Callaghan, Steve S. Liu & Christopher W. Wells. CORR 2010 Volume 469, Number 1, 41-47