Total Elbow Replacement Surgery, can be performed for a number of reasons including Osteoarthritis, Rheumatoid arthritis, a complex fracture of the elbow, even in the elderly or Severely damaged or torn soft tissues in the elbow resulting in instability. An artificial hinge is inserted into the joint so that the elbow can move without allowing the two forearm bones to contact the humerus. This artificial hinge is called an "implant." Compare your options for this procedure below.