SUSAN SHOWS US. >> THEYRE A TOTAL, COMPLETE FAMILY DOGS. >> HE’S A FAMILY FRIENDLY ENGLISH SETTER, BUT THE EIGHT-YEAR-OLD HAS HAD A TOUGH TIME GETTING AROUND. >> YOU SEE THIS POOR DOG LIMPING SO BAD ...

Just like humans, older dogs often have osteoarthritis. They can take pain medication or even have surgery. But a veterinarian in Pennsylvania is having success with a new radioactive injection. One ...