( CNN ) Here 's a dog tale about a pooch with a literal `` spring '' in his steps . Brutus , a 2-year old Rottweiler , is walking again thanks to modern technology and months of training . He 's said to be only the second dog ever known to have four prosthetic limbs . `` You ca n't explain to an animal why you are putting these contraptions on their feet . You ca n't explain to them , that it 's to help them , '' foster mom Laura Aquilina told CNN affiliate KDVR . The Loveland , Colorado , dog 's paws suffered extreme damage from frostbite . His feet were then reportedly amputated by his trainer . Brutus has been adopted by Aquilina who 's been walking and exercising the dog to learn balance . `` He just has these little peg legs to get around on and he does a pretty good job inside the home , '' says Aquilina . But his challenge has been walking outside where his `` high-stepping ... resembles a bucking bronco . '' He was fitted with the devices last year , first in the rear and then front feet came 6 to 8 weeks later . His artificial limbs are made by Orthopets of Denver . `` Brutus is an amazing case of a beautiful dog who was dealt a short hand , '' said Martin Kauffman , founder of the company that makes prosthetics for about 250 animals worldwide a year . New and improved prosthetics are on the way and he 'll be undergoing physical therapy at Colorado State University 's vet hospital . And soon enough , Aquilina hopes Brutus will be playing with other dogs and going on hikes . CNN 's John Fricke contributed to this report .
Brutus ' legs were paralyzed because of surgery . He 's able to walk on the sidewalk with help from his foster mom .