Caring for a Three Legged Dog or Cat

Hi everyone. Kenzie became part of our family a little over 2 yrs ago. I'm a home care nurse and while meeting a new client, I discovered that they had adopted a puppy who had been born with a malformed tibia in it's front leg. My 13 yr old son, Nathan, was born with the complete absence of his tibia in his right leg, and underwent an amputation at 8 mo of age. That got me thinking of adopting an amputee puppy. We already had a 6 yr old dog named Cody and I was thinking of getting him a friend anyway. When I suggested the idea to my son's Nathan was immediately on board.

Kenzie was approx. 6 months old, when she was found abandoned at one of our local Pa state parks. A ranger brought her to the local SPCA and it was discovered that her left front leg had been fractured and healed
incorrectly and the only treatment was to amputate at the shoulder. I contacted the SPCA the next day... needless to say it was meant to be.

Kenzie is a lively (ok, maybe a bit hyper) loving pup who is now 2 and still has little concept of personal space. LOL. She had done very well after her surgery, until last spring when she injured her left rear leg (stifle pull/tear). We have tried anti-inflammatories, rest, chiropractic... and could not find a brace that would fit her. It had gotten somewhat better but she recently injured it again. So, I'm here for suggestions, support and info.