Dr. William J. Long is a board certified Attending Orthopedic Surgeon at HSS specializing in adult hip and knee reconstruction, revision joint replacements and sports injuries of the knee. Dr. Long previously served as an attending orthopedic surgeon at the Insall Scott Kelly Institute for Orthopaedics and Sports Medicine in New York City. He was also a clinical associate professor at NYU Langone Orthopaedic Hospital and assistant program director of the ISK/NYU Adult Reconstruction Fellowship, as well as former director of research at St. Francis Hospital in Roslyn, New York. Dr. Long completed his undergraduate degree at Queen’s University at Kingston, in Ontario, Canada, and his medical degree at the University of Western Ontario. He completed a residency in orthopedic surgery, also at Queen’s University, a fellowship in lower extremity adult reconstruction at the Mayo Clinic and a second fellowship in sports medicine and reconstruction at the Insall Scott Kelly Institute. The author of more than 50 peer-reviewed papers in the last decade, Dr. Long is also editor and author of a number of textbooks on hip and knee reconstruction. He has been an invited speaker at numerous national and international meetings for more than a decade. Dr. Long is the recipient of the 2019 Frank Stichfield Award from the Hip Society, as well as the first-ever TriOrg grant from the American Academy of Hip and Knee Surgeons and the Hip Society and Knee Society.