The Difference: Traditional Thinking About Knee Motion Challenged
Most total knee implants on the market are based on an outdated philosophy that the knee moves like a hinge ... swinging only back and forth. But, of course the knee does not function simply as a door hinge. The knee bends and rotates. The ADVANCE® knee was designed to bend and rotate like a normal knee.
A normal knee actually pivots on its medial (inner side) condyle. When the knee flexes, the lateral (outer side) side rolls back while the medial side rotates in one place. This is precisely why the ADVANCE® Medial-Pivot Knee was designed and how it got its name.