Evaluation of a Single Knee System: All-Polyethylene Tibia (APT) vs. Metal-Backed Tibia (MBT) in Primary Total Knee Arthroplasty.

Abstract

Background The all-polyethylene tibia (APT) in total knee arthroplasty (TKA) previously demonstrated similar survival and function compared to metal-backed tibia (MBT), without the associated risk of backside wear and at a lower cost. The LinkSymphoKnee (LSK) (Waldemar Link GmbH & Co. KG, Hamburg, Germany) and its corresponding APT received FDA 510(k) approval in 2021; however, clinical outcome data remain limited. The purpose of this study was to determine whether the LSK APT would have non-inf