Dr. Henry Ahn is an orthopaedic surgeon with the University of Toronto and is an Associate Scientist in the Li Ka Shing Knowledge Institute at St. Michael’s Hospital. He has a clinical practice focused on the management of polytrauma patients with significant orthopaedic injuries, spinal cord injuries, along with complex adult spinal disorders. Dr. Henry Ahn is a member of the University of Toronto Spine Program and is a Principal Investigator with the Rick Hansen Registry. Dr. Ahn has a PhD in Clinical Epidemiology with the Institute of Health Policy, Management and Evaluation at the University of Toronto. Dr. Ahn has a research interest in the management of spinal cord injury and the epidemiology of spinal cord injury incorporating large databases, prospective cohort studies, along with randomized control trials.