Shifting the bump in almost any direction will change the posture of the kneecap. Once the method, the patella should transfer additional efficiently from the trochlear groove, decreasing strain over the arthritic areas and relieving suffering. A plastic button, or protect, is accustomed to resurface the backside of the patella. http://knee cap replacement https://www.theorthopaedicandpainpractice.com/knee-cap-replacement-understanding-the-basics-of-this-orthopaedic-surgery/