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.