In another thread, I noticed posts saying that breeders should get their dog screened for IVDD before breeding. There is no test as of yet, as far as I know. It is being worked on. But right now they haven't identified all the genetic componants of the disease and it appears to be very complex as is any genetic issue. So there is no easy test and no way that it can be screened for except for someone breeding to know the pedigree back for generations and know there aren't back problems in any of the relatives.
And that's not gonna rule out problems caused by injury, obesity, or random genetic things (thinking of little Cami with her hump).
Not standing up for breeders here of course just clearing up a misconception. I heard someone at our meet-up say that her puppy's breeder had tested for IVDD and were cleared and I went home and looked it up....either she misunderstood or was deceived I think cuz I don't find anything that says it can be done. Yet.
I saw a study that was done in Finland that suggested dogs could be x-rayed for calcifications as that could be what made them develop IVDD later in life...but found there must be other factors and that knowing the history and health of all breeding animals was the best thing still.