This is something you should be talking to a neurosurgeon about. With stem cell research they are coming up with all kinds of new things. They just need support to help make it legal. So many lives could be majorly improved will stem cell treatments. I have spina biffida causing a tethered spinal cord. I have major nerve damage in my spine and all they can do for me right now seems to be to medicate me with heavy meds. Even though its limited now, science and medicine is always making advancements. Don't give up, give it time. If you find anything that could possibly help, do please let me know. I'm in constant agony because of 20 something years worth of nerve damage problems in the spine. Would be nice if they could indeed help repair that.
There might be treatment for nerve regeneration on the upper spine. This condition is very sensitive that doctors can deal with depending on the extent of the damage. It is important that the patient sees the doctor regularly.