Neuropathy usually refers to peripheral neuropathy, which shares some symptoms with MS, but is different because PN means a problem with the peripheral nervous system (outside the brain and spinal cord) and MS is a problem of the central nervous system (brain and spinal cord). Sometime neuropathic pain, which is just a general neurological symptom caused by many things, is called neuropathy so that may be the source of your confusion.
I was dx'd with PN for six years before I went to PN neuro who did more tests and figured out that I had MS so I read a lot about PN.
PN can causes changes in reflexes (http://www.nlm.nih.gov/medlineplus/ency/article/000593.htm), but so can spinal cord lesions, such as the one you have. A couple things I came across seemed to suggest that PN was more likely to cause absent reflexes. The health page on reflexes at
http://www.medhelp.org/health_pages/Multiple%20Sclerosis/Measuring-The-Tendon-Reflexes/show/157?cid=36 might be helpful.
If you have a spinal cord lesion (which isn't cause by a whole lot of other things besides MS) and a positive LP and the MS mimics have been ruled out, I have no idea why your neuro would suddenly be bringing up PN. Did he give any sensible explanation? If not, perhaps you need to look for a new neuro.
The fact that the Copaxone has thus far not had a positive effect means nothing. (1) It takes six months to reach its full effect; (2) it may slow progression, but it's not billed as reversing anything; (3) it doesn't work for everyone with MS.
sho
PS The doctor on the MD forum left and MedHelp apparently can't find a replacement. You might try the general neurology forum.