Dr. Nicholas Sgaglione is Professor and Chair of the Department of Orthopaedic Surgery at North Shore Long Island Jewish Medical Center and at the Hofstra University North Shore-LIJ Medical School and has been in clinical practice for 26 years in Great Neck, New York. He graduated from the Mount Sinai School of Medicine, where he also completed a surgical internship. He completed his residency in orthopaedic surgery at the Hospital for Special Surgery in New York and a fellowship in sports medicine at the Southern California Orthopaedic Institute in Los Angeles. He also serves as the Senior Vice President for Orthopaedics for the North Shore Long Island Jewish Health System and Executive Director of the North Shore-LIJ Orthopaedic Institute. Dr. Sgaglione was elected president of the Arthroscopy Association of North America for 2012-2013 and has served on its Board of Directors since 2008. He was elected to the American Orthopaedic Association in 2006 and currently is a trustee of the AANA Education Foundation and Association Member Representative for the Orthopaedic Learning Center in Rosemont, Illinois. He is an active member of the American Orthopaedic Association, American Academy of Orthopaedic Surgeons, American Orthopaedic Society of Sports Medicine and International Cartilage Repair Society. Dr. Sgaglione serves on the Board of Trustees of the Arthroscopy Journal as well as the editorial board of several medical journals and is the author of three textbooks and 75 published articles and chapters on arthrosocpy, minimally invasive surgery and knee, shoulder and cartilage surgery. Dr. Sgaglione has been a national and international clinical leader and educator specializing in sports medicine, particularly knee, shoulder and elbow problems and arthroscopic and reconstructive surgery including knee and shoulder replacement surgery and cartilage transplantation and joint preservation and biorestoration. Dr. Sgaglione currently practices sports medicine and has served as the orthopaedic consultant for the United States Ski Team, US PGA and for numerous Long Island High Schools. He has served as the team orthopaedist for the United States Merchant Marine Academy for the past 24 years. More recently he has served as the team orthopaedist for the Major League Lacrosse New York Lizards. He is listed and recognized in Best Doctors of New York and Best Doctors of America since 2007.