Prieto is super loyal. He is patient, obedient, and smart--a great combination. He wants to please you, he tries to follow your directions, and he does everything with a big, loving smile. While Prieto is obviously a handsome pup, he does have with one particular problem. He has a luxating patella (aka a bum knee) affecting his left rear leg and requires surgery to fix it. Once he has this operation, Prieto will officially be the perfect pup - will you help him achieve this greatness?