Can the knee cap be replaced?

Yes, the kneecap, or patella, can be replaced in a surgical procedure known as patellar replacement or patellofemoral arthroplasty. This procedure is typically performed to relieve pain and improve function in patients with severe knee joint issues, such as Arthritis or injury. However, total knee replacement is more common, which involves replacing both the femur and tibia components along with the kneecap. The decision for patellar replacement depends on the specific condition of the knee and the patient's overall health.