There are some risks of doing a joint placement. Those risks include but are not limited to the pain not going away or not going away completely. There is risks of wearing down that joint where you would need another joint. There are arteries, nerves, and other types of soft tissues around the joint that might get injured during the procedure. They can have a stiff joint after a total joint replacement. At the end of the day, 90 plus percent are successful after joint replacement treatments.