I have to agree with uplandchessies. As illini said it all depends on the dog. Maybe the pup will show signs in 1 yr., 5 yr. or maybe never, who knows. So why do something that is completely unnecessary???
Yes, dogs might die regardless of the pain they are in doing what they love. Or they may tear off a teet or lose the pads on their feet(hey, that rhymes



). But those are things that they can bounce back from, and are just things that happen in the field(i.e.WORK HAZARDS). They are also not things that a dog owner can see happening before hand, and not put a dog through because they know it is going to hurt the dog. Basically they are not at all related to " HD" .
So until the dog is too uncomfortable and you know that it is only right to put the dog down, save yourself what could be alot of unnecessary heartache. If the surgery can be done right and it could help, do it, just more power to ' ya

.
I' d do it for my black lab!!!
CJW