Knee replacement, also known as knee arthroplasty, is a highly effective surgical procedure aimed at relieving pain and restoring function in a damaged or arthritic knee joint. This procedure is typically recommended for individuals experiencing severe knee pain, stiffness, or reduced mobility due to conditions like osteoarthritis, rheumatoid arthritis, or traumatic injury. During a knee replacement, the damaged surfaces of the knee joint are removed and replaced with artificial components made of metal, plastic, or ceramic. These implants are carefully designed to mimic the natural movement and function of a healthy knee, providing patients with a smoother and more stable joint. Depending on the extent of the damage, the surgery may involve a partial or total knee replacement. Following the surgery, patients typically engage in a structured rehabilitation program to strengthen the knee, improve flexibility, and ensure a full return to daily activities. Knee replacement can last for decades, allowing patients to enjoy an active and pain-free lifestyle.