Could we one day 3D print replacement organs and parts for own our bodies? It sounds like science fiction, but new materials and 3D printing techniques could revolutionise medicine in the future.

BBC Click’s Spencer Kelly went to London’s 3D Print Show to see how the latest technology was transforming surgery and prosthetics – including a 3D printed arm that could respond to your own muscle movements.

More at BBC.com/Click and @BBCClick.