
Hi Frenchieboy
Sorry to hear about your dog. I have German Shepherds with HD, and really it's a matter of degree as to how they're affected clinically. My nearly 4 year old doesn't really shown any signs, and no lameness or pain (and she does light agility).
My original GSD had both her hips replaced, as she was in real pain, and often would take little pigeon steps with her back legs to avoid moving her hips too much. We did try acupuncture and Mctimoney Chiropractic, both of which helped to some degree, but not enough. She was on Rimadyl for a long time, and then full hip replacements on both hips.
With a small dog they would do an FHO a femoral head osteotomy, where they completely remove the ball on the head of the femur, and the muscle supports the hip. It works very well on small dogs I understand.
If you have him on Rimadyl, I take it he shows signs of pain? Is it both hips or just one? As he is so young, and if he is suffering pain, why don't you get a referral to an orthopaedic specialist and take their advice as to whether to have surgery. It totally removes any pain and they do so well.
If you want to ask any questions do let me know - but if it were me I would go and see a specialist, and think about options from there.
Kat