Just over 15 years ago, Johnny Matheny was diagnosed with fibrosarcoma, a rare form of cancer that attacked the connective tissue around the bones of his left hand. His doctors gave him a choice: ...

Becoming bionic isn't like it is on television — I haven't been implanted with computer chips and wires. I still put my prosthesis on over what's left of my organic leg. But my new bionic knee, called ...