"I think this does open the door for us to be able to help other animals that have similar problems," Bergh said in a statement. "And even what we've learned just through Vincent's one case, we've actually refined the technique and the implants, so the next cases we do moving forward will be even more successful."

Unlike conventional prosthetics, these legs are surgically embedded into his upper leg bones so that as he grows, they fuse themselves to the prosthetics. So while he walks like a pirate, Vincent is technically a cyborg.