He was born with deformed front legs. But the transformation left me in tears.

See how unique, custom 3D printed prosthetics allow Derby the dog to run for the first time.

By the way here’s an updated video just released last week. 3D Systems team members have continued research to allow Derby to walk with a straight back. He can now sit like a real dog! See the update now.
Update

If you love dogs, consider sharing this great video and discovery. Thank you.