Does a new implant design with more physiological kinematics provide better results after knee arthroplasty?

Background: Improved knee kinematics is one of the major goals to obtain better satisfaction after total knee arthroplasty. This study examined whether a guided motion knee design improves functional outcome and satisfaction as compared to a conventional design.

Methods: In a retrospective manner, from January 2005 to December 2008, patients with two different kinematic TKA designs were enrolled.