Quick update. Max is in doggy hospital and will be overnight.
He has had one operation and H and I then transferred him to our vets larger practice, nice 30 mile round trip. It was a horrid journey as Max was still sedated when the nurses carried him to the car. He then started to come round, whining and crying, he was stumbling around trying to stand, very distressing to listen too.
Tomorrow the vet will take a closer look at the knee joint as they are worried about infection. I'll know more tomorrow.