Doctor Diana is a highly trained orthopaedic surgeon specializing in arthroscopic knee and shoulder surgery. His expertise in minimally invasive shoulder and knee surgery provides state of the art treatment for sports and nonsports related injuries in patients of all ages. His specialized surgical training, when combined with his unique history as an NFL football player and collegiate football & baseball All American, uniquely qualifies him to understand and treat athletes who have suffered sports injuries. He has performed more than 6000 successful shoulder and knee surgeries. In January 2014 his paradigm shifting book Healthy Joints for Life (Harlequin) was released describing his ground-breaking nonsurgical program for joint pain relief.