1 From the DoD-VA Extremity Trauma and Amputation Center of Excellence, Bethesda, Maryland (ADK, CLD, BDH); Department of Rehabilitation, Walter Reed National Military Medical Center, Bethesda, Maryland (ADK, PPA, MDB, CLD, LMH, BDH, TJS); Department of Rehabilitation Medicine, Uniformed Services University of the Health Sciences, Bethesda, Maryland (CLD, BDH); Department of Surgery, Uniformed Services University of the Health Sciences, Bethesda, Maryland (CLD); 3D Medical Applications Center, Department of Radiology, Walter Reed National Military Medical Center, Bethesda, Maryland (PCL); and Radiology and Radiological Services & Naval Postgraduate Dental School Uniform Services University of the Health Sciences, Bethesda, Maryland (PCL).