Total Knee Arthroplasty (TKA), commonly known as knee replacement surgery, is a procedure that involves removing damaged cartilage and bone from the knee joint and replacing it with artificial components. This surgery is often recommended for individuals suffering from severe knee pain or disability due to conditions like osteoarthritis or rheumatoid arthritis. The goal of TKA is to relieve pain, improve function, and enhance the quality of life for patients. Recovery typically involves physical therapy to regain strength and mobility, and most patients can return to normal activities within a few months after the surgery.