Patellofemoral arthritis occurs in the event the articular cartilage alongside the trochlear groove and about the underside from the patella wears down and results in being inflamed. This triggers inflammation often known as osteoarthritis, which results in ache and stiffness which make going for walks along with other motion hard. http://knee cap replacement https://www.theorthopaedicandpainpractice.com/knee-cap-replacement-understanding-the-basics-of-this-orthopaedic-surgery/