1. Department of Orthopaedic Surgery, Cleveland Clinic, Cleveland, OH, USA
2. Department of Orthopedic Surgery, SUNY Downstate Medical Center, Brooklyn, NY, USA
3. Department of Orthopaedic Surgery, Carilion Clinic, Roanoke, VA, USA
4. Department of Orthopedic Surgery, Lenox Hill Hospital, New York City, NY, USA