Sadly the condition does affect a number of breeds beyond those already mentioned which is why it is important for the profile of the condition to be raised so that breeders are aware before any kittens are produced with the disease. It is also important for people considering a kitten to be aware so that they can do more research into the condition and they can speak with the breeder to ensure both parents have been tested and are cleared as not being carriers of the gene. Whilst it is unfortunate that the only test is via an x-ray, it is an important test that should be undertaken as the affect on the cat that is found to have the condition is very distressing. I am yet to find a breeder who is proactively testing for the disease but I very much look forward to hearing from somebody (especially a BSH breeder) who is undertaking such tests.