Knee replacement surgery is considered an effective treatment option for many patients with osteoarthritis, globally. In the United States, for instance, there are over 600,000 knee joint replacement surgeries a year. The surgery involves removing the damaged portion of the knee and replacing it with an implant. A rigorous post-surgical rehab program usually follows. One can read more about the procedure, the pre-surgery preparation and the post-surgery recovery period in some of the other sections of the website. It is important to consult a physician to understand all the treatment options available for the patient and understand what is the best option and why.