Lorraine Your little guy sounds delightful and I doubt he will get to even 4 lbs if he is 2 1/2 at 5 months. I would guess somewhere between 3 and 4 lbs.
Unfortunately, it is the ligaments involved with a luxation so it doesn't show up on an xray. By examination the Vet determines if he/she can pop the knee or not and how tight that is to determine if there is a problem. It is not an exact thing and a Vet can actually hurt them if they don't know what they are doing.
The first YOrkie I ever got was a pet delightful little guy. The vet I took him to at the time said he had knee problems and would likely need surgery. He never did require surgery and got along just fine, never even missed a step with either rear leg. He could run play do everything just fine.
I do mobile pet grooming and many times I have various breeds of toy dogs and crosses on my grooming table. I can lift a hind leg and hear the knee popping all over the place but it is never a problem, just pops back in again. I would hazard a pretty safe guess a Vet would want to do surgery and say it was a problem. It wasn't and these dogs lived to grand old ages without ever needing it fixed.
If your dog hikes up either rear leg more and more from now to about a year of age, it could be a problem especially if he doesn't eventually put it down to use it in walking, Then you may require surgery on it or if he seems in pain with it. That however, could even occur a little older like 3 or 4 years of age.
Again, I would get a couple of opinions especially if you can find a Vet that is knowledgeable for sure about knees on these dogs.
Lorraine
Loriben Yorkies |