Off at a tangent.
But.
Here in UK we have a TV show called Supervet which features Irish vet Professor Noel Fitzpatrick.
He has pioneered many types of surgery, and prosthetics that has given life and mobility to animals that in normal veterinary practices would be put down.
Amongst them is the proceedure you enquired about.
To see literaly paralyzed cats dogs etc. walking and running after spacers are put in the spine is amazing.
I would definitely look into it more.
If you have no success, you could always come over to UK and get the vet to do it!
