3D-printed prosthetic limbs: the next revolution in medicine

As 3D printing continues to transform manufacturing, doctors are hoping it could also help the 30 million people worldwide in need of artificial limbs and bracesJohn Nhial was barely a teenager when he was grabbed by a Sudanese guerrilla army and forced to become a child soldier. He spent four years fighting, blasting away on guns almost too heavy to hold, until one day the inevitable happened: he was seriously injured, treading on a landmine while he was on morning patrol.“I stepped on it