Regarding dogs with paralysis, before considering surgery please try DMSO. My little girl injured her back and could not use her back legs. Both back legs were dragging. I was advised to get a neurological consult with MRI to consider surgery on my 13 year old girl. I did not want to even consider surgery on her, so I decided to give DMSO a try. You need to read all about it first so you understand how to dose and mix.
For my 9 pound girl I made a 50/50 mixture of 50% DMSO and 50% Distilled Water. From that mixture I syringed up 1/8th of a teaspoon (0.6 cc's or ml) and put that in to her mouth. You need to get pharmaceutical grade 99.9% pure, DMSO (you can get on Amazon, get the one in a glass bottle, READ comments to decide the best to get) and ALWAYS only mix with DISTILLED WATER, NOT TAP water. I dosed her 3 times a day, and on the 3rd day she had movement in her legs, and by the end of that week she could support herself to walk. She got stronger and stronger and after about 2 weeks she was totally able to walk as normal.
When she got tired of being syringed, I went to putting the 1/8th teaspoon of the 50/50 mixture in 1 Tablespoon of chicken broth mixed with 1 Tablespoon of Distilled Water. She lapped it right up. I went to giving twice a day after her walking was really good. I will now decrease to once a day and see how she does, and so forth. DMSO is a wonderful product to have on hand, but you must be careful to read and mix and dose correctly.
READ all about it, and be prepared when an emergency arises so you know how to use it when you need it. It is safe when used correctly, and I will always have it on hand now that I see what it can do! Also, forgot to mention the first 2 weeks she was kept very quiet, when not home to watch her, I put her in a crate, but when home to watch her she was not in the crate. The 2nd 2 weeks she was kept on a leash when outside, and I just made sure she did not take out after a squirrel or do any fast moves. The 3rd 2 weeks I still kept her on a leash, just to be extra careful. No jumping up or down off of furniture, etc. EVER.