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EVOLUTION® Medial-Pivot Knee System

The Evolution® Medial-Pivot Knee System was designed based on the success of the ADVANCE® Medial-Pivot Total Knee, which was launched in 1998. The ADVANCE® Medial-Pivot Knee was one of the first total knee implants designed based on modern studies which showed that the medial compartment of the knee moves less than the lateral compartment. All of MicroPort Medial-Pivot total knee implants feature ball-in-socket articulation which enhances stability and allows the prosthesis to move and feel more like a normal knee. Traditional knee implants slide anteriorly (commonly referred to as paradoxical motion), due to tibiofemoral incongruity and a loss of stabilizing structures after total knee replacement. In addition, paradoxical motion seen in traditional total knees may cause a patient’s knee to feel less stable and exhibit more noise. On average, nearly 20% of patients are unhappy with their total knee replacement. According to the literature, the leading causes of dissatisfaction are residual pain, functional issues, and early implant failure. The Evolution™ Medial Pivot Knee System aims to answer these traditional implant limitations, by providing an implant that delivers flexion stability, anatomic motion and wear limiting design.

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  • Flexion Stability
    The eMP Knee System has been formulated to maximize stability throughout all phases of flexion.
    Anatomic Motion
    The eMP Knee System features a global sizing profile and design elements that drive natural function and normal feeling.
    Wear-Limiting Design
    The eMP Knee System provides high contact throughout range of motion (ROM) to minimize contact stresses.