Jamie, I'm so sorry :( Sending you and George all the best thoughts.
One of my Boxers, Bo, dislocated his back when he was around 8 years old. He was jumping up into the air to catch his ball and just crashed to the ground screaming. He lost the use of his back legs. The vet initially wanted to put him down, but we refused. Anyway, to cut a long story short, we took it in turns having morning and afternoons off work (nearly lost our jobs over this) so one of us would always be home with him. We would massage him frequently and help him outside when needed. After a couple of weeks he could stand on his own and after a couple of months he was back to normal. He had a slight limp on his back right leg after this, but was as active as ever. As he got a little older there was some slight knuckling over of the back right foot (mainly when he was tired). He lived to 14.5 years of age
Anyway, just wanted to let you know that there is light at the end of the tunnel.
All our very best thoughts are with you.
Sharon