(CNN) — Amy Pietrafitta has learned to walk seven times. First was as a child and then after an industrial burn led to the amputation of her left leg in 2018. Since then, she’s had “first steps” in ...

Scientists are testing the the first bionic leg fully controlled by the human nervous system to demonstrate natural walking speeds and gait patterns. (CNN) — Amy Pietrafitta has learned to walk seven ...

For better or worse, war has provided the impetus for new medical technology. The latest wars in Iraq and Afghanistan have sent home many men and some women who suffered the loss of legs and arms.