The EVOLUTION^® Medial-Pivot Knee System was designed based on the success of the ADVANCE^® Medial-Pivot Knee, which was originally launched in 1998. The ADVANCE^® Medial-Pivot Knee System was one of the first total knee implants designed based on modern studies which showed the medial compartment of the knee moves less than the lateral compartment. ¹

All of Wright’s Medial-Pivot Total Knees feature ball-in-socket articulation, which enhances stability and allows the prosthesis to move and feel more like a normal knee. Traditional knee implants, however, slide anteriorly (commonly referred to as paradoxical motion) due to tibiofemoral incongruity and a loss of stabilizing structures after total knee replacement. In addition, this paradoxical motion seen in traditional total knees may cause a patient’s knee to feel less stable and exhibit more noise. ^2,3,4,5

Peer reviewed literature has shown medial-pivot total knees to be more stable and patient preferred, compared to traditional total knee implants. ⁶