In a three-hour procedure, the veterinary surgical team inserted the pegs by drilling into one of Oscar's ankle bones in each of his back legs. The implants, which are attached to the bone at the amputation site, were coated with hydroxyapatite to encourages bone cells to grow onto the metal.
The skin then grows over a special "umbrella" at the end of the peg to form a seal against bacteria and potentially fatal infections. The peg protrudes through the bone and skin, allowing the custom-built artificial paws to then be securely attached.
Oscar was trying to stand a day after the surgery and, despite some problems with infection, he was able to bear weight equally on all four limbs within four months.
Link and Video via Geekologie | Photo: Jim Incledon/PA