(From the New Scientist). Work on repairing shattered bones is where to look if you want to see the cutting edge merger between developing replacement body parts and biotechnology. The new work described in this article creates scaffolds in a 3-D printer (or fabricator) that can be implanted into the body. Advanced materials science means that these artificial bone fragments can be shaped as needed, are strong enough for use and are slowly replaced with real bone as the body heals. As usual, this wonderful, promising regenerative medicine is years away from human trials due to the onerous requirements of the FDA.