Doctors in China have completed a very successful double knee replacement surgery thanks to 3D printing technology. A young boy came in with 2 severely bowed legs (43 and 20 degree angles). His condition required a double knee replacement, but since it was so severe surgeons needed to come up with a plan to ensure the surgery would be a success. They elected to 3D print medical models of the knees and legs in order to better ensure a success. The surgery, which took place on July 10 has left the boy with completely straight and function legs, allowing him to walk pain free. Read and see more at: http://3dprint.com/85309/bent-legs-fixed-3d-printing/