You may recall recent news of Chinese advances in bone regeneration. It is are working well and has been successfully used dozens of patients. This article from Small Times notes that commercialization is only a few years away. Commentators seem optimistic that it will get through FDA approval rapidly; we can hope. A normal outcome is for a new medical technology to be blocked by the FDA for anything up to a decade. The pioneer of this technology is currently looking at regeneration of other body parts using similar techniques.