John Fergason, CPO, is the Chief Prosthetist at the Center for the Intrepid at San Antonio Military Medical Center. He was formerly an Instructor and Clinical Manager for the Prosthetics-Orthotics Program at UT Southwestern in Dallas, TX and proceeded to become the Director of the Division of Prosthetics-Orthotics at the University of Washington in Seattle, WA. He currently is adjunct faculty for the Baylor Prosthetics-Orthotics Program and the UT Southwestern Prosthetics-Orthotics Program. He has lectured extensively on all topics in lower limb prosthetics, has many peer-reviewed articles and has authored multiple book chapters. While at Brooke Army Medical Center, he has developed the services from a small laboratory serving the local needs of the hospital to an international Center aimed at improving function for service members who have sustained catastrophic limb injury. His staff continues to treat the most complex patients seen as a result of battlefield injury and has become established as one of the primary military centers for limb loss.