Joint replacement is a surgical procedure that involves removing a damaged or worn-out joint and replacing it with an artificial joint, often made of metal, plastic, or ceramic materials. This surgery is commonly performed on joints like the hip or knee to relieve pain and improve mobility, especially in patients with conditions like arthritis. The procedure typically involves making an incision over the affected joint, removing the damaged parts, and inserting the new joint. Recovery may include physical therapy to help restore strength and movement. Most patients experience significant pain relief and improved quality of life after the surgery.