David M. Lichtman, MD, Rear Admiral (Retired), US Navy, Adjunct Professor, Department of Surgery, Uniformed Services University of the Health Sciences, Bethesda, MD, USA, Adjunct Professor, Department of Orthopedic Surgery, University of North Texas Health Sciences Center, Fort Worth, TX, USAGregory Ian Bain, MBBS, FRACS, FA(Ortho)A, PhD, Professor, Upper Limb and Research, Department of Orthopedic Surgery, Flinders University and Flinders Medical Centre, Bedford Park, Adelaide, SA