Try to keep her from jumping on and off the furniture or beds. I have a 5 year old with the potential for this and we had to train her to stay off the furniture unless we picked her up and put her back down. The jumping down still is a challenge if she has a quick desire to move she still does it before I can react. My vet said the jumping was one of the worst things for small dogs, yorkies for sure, as far as the knees and hips. Even if your yorkie doesn't have symptoms the jumping should be limited to prevent this from becoming an issue. Good Luck!
