Hi, it is so sad to know about this case
Did you know a Homeopathic Solution called Chondropaw ?. Find on google, this supplement is specialized on the Immune system and Inflammation. Is oral and ease to use (liquid 1 or 2 doses per week). I'm sure Chondropaw is going to help your puppy from Hip Dysplasia condition because there are many others dog owners that use and show their testimony's on videos (there is many on youtube) if you type chondropaw. Bests