Heroes of Medicine: The $28 foot

People who live inside the world's many war zones, from Afghanistan to Rwanda, may never have heard of New York or Paris, but they are likely to know of a town in northern India called Jaipur. Jaipur is famous in strife-torn areas as the birthplace of an extraordinary prosthesis, or artificial limb, known as the Jaipur foot, that has revolutionized life for millions of land-mine amputees. The beauty of the Jaipur foot is its lightness and mobility--those who wear it can run, climb trees and pedal bicycles--and its low price. While a prosthesis for a similar level of amputation can cost several thousand dollars in the U.S., the Jaipur foot costs only $28 in India. Sublimely low-tech, it is made of rubber (mostly), wood and aluminum and can be assembled with local materials. In Afghanistan craftsmen hammer the foot together out of spent artillery shells. In Cambodia, where roughly 1 out of every 380 people is a war amputee, part of the foot's rubber components are scavenged from truck tires.