The surgeon will discuss this on a person foundation. It will eventually depend on the amount of of your knee is affected by arthritis. The operation commonly requires involving 1 and 3 hrs. The surgeon would make a Minimize down the front with the knee, moves the knee cap (patella) http://knee cap replacement https://www.theorthopaedicandpainpractice.com/knee-cap-replacement-understanding-the-basics-of-this-orthopaedic-surgery/