Hi, I am posting this in the hope that someone who has owned Australian Cattle Dogs might be able to give me some guidance as to what might be causing the problem for my 18month old ACD, Indi, to has developed such a bad limp. Currently a vet specialist has x-rayed, used a camera to examine her joints but still cannot determine what is causing the problem. Was initially suspected arthritis, but this seems to have been ruled out - has anyone owned an ACD with similar problems that might be able to give me some guidance.