Professor Dr. med. Carl Haasper, MSc came after studying and scientific activity to a Doctorate in Lübeck, Giessen, London and Charleston, SC to the Hannover Medical School (MHH) and then followed the classic wide surgical training in the center of surgery. It was from the beginning a clear clinical and academic focus on joint surgery. After completing the residency and habilitation (higher doctorate) for surgery with a big tissue engineering project, a fellowship at the renowned ENDO-Klinik Hamburg followed. Then he worked as a senior physician and chief of knee surgery at the Trauma Department of MHH before he returned to the ENDO Clinic to expand the sports medicine and pre-prosthetic treatment of the knee joint there. Today he is surgeon in chief in a big regional center for orthopedic surgery.