with Misfits4me. Get to a teaching vet school. It could be several things besides the orthopedic.
If funds are an issue there are charities that can help and carecredit may help too but watch the payment schedule with that plan.
What you were originally treating was a herniated Disc of the spine......Now, the disc has ruptured.....Thus, the rear end parallysis.....Classic sign of IVDD (Intervertabral Disk/Disc Disease)......This is all treatable with the correct protocol....There also is a surgery to correct it...You need to google IVDD and go from there.....The medications & crate rest are vital during episodes.......
If you are interested in the surgery, a Veterinary teacing hospital has the best prices....There are 27 in the US...A Specialized surgery center will charge you almost twice as much!
The greatest chance of reversing the paralysis is in the first 36 hrs. of the rupture.......Please let us know what your Vet says....Good luck, I'll be thinking about you both....Karla