In the world of osseointegrated prosthetics—fake limbs that fuse to bone—Cassidy is top dog
That's because the male German shepherd mix (pictured at North Carolina State University's School of Veterinary Medicine
in Raleigh on March 10, 2009), is the first canine to receive the pioneering surgery. Cassidy was born with a defect in his left hind leg, according to the university.
" ... We see the possible benefits for humans—implants that allow the prosthetic limbs to attach without chafing or irritation, and limbs with more natural ranges of motion," NC State's Denis Marcellin-Little, who helped perform the surgery, said in a statement.
"We believe that this is the future of prosthetics."
Photograph by Shawn Rocco, The News & Observer, AP