Kicking a ball or climbing stairs with ease after a leg amputation above the knee is now within reach. Researchers at MIT have developed a bionic knee that redefines mobility for above-the-knee ...

Thomas Gee, a former gymnast, used to do handstands, perform wheelies on his skateboard, and run around with his three young children. But in 2001, a marble-sized bump on his left leg swelled to the ...

I have been an above-knee amputee for over 50 years. For the first 30 years, my prosthesis was balsa wood with a simple mechanical knee. I fell a lot, could only walk at one fixed speed, would sweat ...