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The Journal of Arthroplasty, POSTER #28| VOLUME 25, ISSUE 3, E73, APRIL 01, 2010
Knee
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Metal Backing Significantly Decreases Tibial Strains in Unicompartmental Knee Arthroplasty
Scott R. Small, MS Michael E. Berend, MD Merrill A. Ritter, MD Christine A. Buckley, PhD Renee D. Rogge, PhDKnee
Long-term survivability has increased for unicompartmental knee arthroplasty. With all-polyethylene tibial designs, tibial subsidence has been a leading cause of failure. Metal backed implants, with congruent articulations, decrease stresses in the tibial polyethylene; however, their effect on tibial loading is not well understood. The purpose of this study was to compare strains induced on the proximal tibia in metal-backed and all-polyethylene UKA designs.
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