Severance has accumulated many years of clinical and research experience by performing each year over 800 knee, 700 shoulder and 1,000 ankle arthroscopic surgeries. Arthroscopic surgery is performed by inserting a small arthroscope into the surgical region, and it can reduce the recovery and rehabilitation period by minimizing incision and damage around the target tissue. Researchers at Severance Hospital have presented over 100 papers to the Science Citation Index journals and introduced operation techniques that the hospital has developed. Severance has also registered over 10 videos for the visual and auditory library of the American Academy of Orthopedic Surgeons (AAOS).