I've got a 80 lb 14 month gsd. He reached 25 1/2 inches at 9 mo. and hasnt gotten any taller since. Two months ago his right elbow started making a popping noise. It sounds like the noise a middle aged persons knees make the fist time they bend down in the morning. Kind of a joint noise pop. He absolutley shows no sign of pain, runs and plays, gets up without hesitation etc. Absolutely no sign of anything wrong other than the noise. The noise is mostly heard when he lift the leg while walking slowly. The pop noise is made about once every 8-10 steps he makes with that leg. It doesnt really make the noise when hes running. I've had him looked at by three vets. One said it was a ligament stretched over the joint that is being stretched and pops over to the side across joint back and forth. The other two disagreed and said problem is in the joint. All three vets felt his joint, wiggled his bones, and they made comments as though they felt normal and no excessive play in them. I am extremely hesitant to consider surgery because of money problems, therefore haven't done xrays either. I can afford to buy him Glucosamine. My questions are, would it help? If so what kind and what quantity? Anyone had any experiences with what I'm desribing. Anyone have any other advice?