Have seen numerous instances of animals with various devices, to give them mobility, so after recovery from surgery, I suspect you can find suitable devices.

and one with only two legs. You saved him from cancer, and once the incision heals he will feel much better - the cancer would have been much worse. See if the vet will give you some pain pills for him. It will be OK.

Pain pills. Hes in pain and whining.

My dog has serious health problems, and when we went to a different Vet (because emergency) we found out
that better pain medicine (a synthetic opioid) helped so much.

It should just be for a short time.

He didn't seem to mind much. He went up 17 stairs to my bedroom the day he came home from surgery. He only fell when he attempted to heist his right back leg .

Vet said most owners go through more mental pain than the dogs. He lived another 5 years to age 15.