Blast exposure is a common cause of soft tissue injury (STI) on the battlefield; with the extremities often critically involved. Blast exposure results in complex injuries involving bone, neurovascular structures, and soft tissue.The degree of STI (soft tissue injury) often requires the use of advanced reconstructive methods, e.g. autologous tissue transfer, to achieve adequate wound coverage. The use of external tissue expansion has been utilized to significantly reduce wound burden in these patients. Overall time to wound coverage ranged from 1-17 days, with mean time to wound coverage being 6.5 days. Case provided by: northeastern society of plastic surgeons.