Best Orthopaedic Surgeon in RR Nagar, Bangalore | Dr. Basavaraj CM says Joint replacement surgery is a medical procedure where a damaged or diseased joint is replaced with an artificial joint made of metal, plastic, or ceramic materials. It is usually done to relieve pain, improve mobility, and restore function in joints, such as the hip, knee, shoulder, elbow, and ankle. The surgery can greatly improve the patient's quality of life and enable them to resume their daily activities with less discomfort.