Many pro baseball pitchers have the Tommy John surgery in which a tendon is taken from the arm or leg and threaded into the elbow to connect the ulna and humerus and act as a ligament after they have torn theirs due to the sport. This surgery involves two parts, the harvesting of the tendon and then the implantation of said tendon into the elbow. Recovery tie for this surgery is often a year. I would like to create a strong synthetic ligament that matches the measurements of the patient so that a tendon does not need to be harvested. I am not sure if this would reduce the recovery time, but it would be an improvement to the current surgery and allow for increased mobility, durability, and strength.