Knee replacement surgery, also called knee arthroplasty, is a procedure where a damaged or worn-out knee joint is replaced with an artificial joint made of metal and plastic. It is usually done to relieve pain and improve mobility for people with severe arthritis or knee injuries. The damaged parts of the knee are removed and replaced with prosthetic components that mimic the function... https://www.edhacare.com/treatments/orthopedic/knee-replacement