I would read the studies, honestly. I prefer NOT to feed commercial grain free dog food, as I have found no benefit. My previous dog always had runny stool on grain free, but when I switched her to a grain inclusive food it firmed right up and her coat improved. My current dog is the same way. I prefer not to supplement with pumpkin, and it appears dogs do benefit from the fiber in grain inclusive foods.
If you DO choose to feed grain free, make sure the ingredients don’t have legumes high on the ingredient list. There seems to be a correlation.
Hello.
If you follow my blog at kmdvm.blogspot.com I have a few articles on this. I would use a soft splint and rest. These kittens grow and the legs strengthen and they can have normal lives. If you are anywhere near me in northern Maryland I will help.