WASHINGTON — In April 2003, in Baghdad, Army Specialist Garth Stewart stepped on a land mine. The blast blew off half his left leg. The next thing he knew, he was in a military hospital being prepped for the eventual fitting of a prosthesis. Today, Stewart is a poster boy for the Army’s latest generation of “intelligent” robotic limbs that move and flex like real limbs — and adapt themselves to a wearer’s unique gait. Prostheses have come a long way since the wooden peg leg, but in the future they might not be necessary at all. One military medical […]