The Science of Over the Edge: Bone Growing Wire

Inventors haven't come up with bone growing wire as described in the first book of the Over the Edge series, but they have come up with some bone growing foam. French scientists reported recently that they'd created an injectable foam that repairs degenerating bones and may even regrow them. It's called calcium phosphate cement. It's been used before, repairing broken vertebra for instance, but not in this form. Here's the link to the story:

Researchers have created an injectable foam that can heal degenerating bones