In yet another advancement from the Kurzweil Institute, bio medical scientists have been using 3D technology to heal a joint at the same time as it is being used. The experiment, the first of its kind, was conducted on a rabbit, and showed the injured rabbit's joint regrowing while the joint was mobile.

In the study, the researchers first imaged the damaged forelimb joint and then created a three-dimensional picture of it. They used a bioprinter to "print out" a precisely accurate, three-dimensional copy of the joint, but criss-crossed it with tiny interconnecting microchannels to serve as a scaffold for new bone and cartilage growth.

If this can be replicated in humans it will change the way bone fractures and bone diseases are treated and would have people up and walking rather than being in casts. It could also potentially hep regrow missing limbs if taken to its limits. Only time will tell.