I reviewed our previous communications from Oct and Nov of 2001, and I'm glad you got an apptmt with Dr. Benzel. The abdominal symptoms can occur with spinal cord problems, but usually at a much higher level than what you describe yours to be at (yours is at the
lumbosacralLumbosacral spine ct
Lumbosacral spine mri level rather than thoracic which could cause an abdominal band like sensation). So it's quite possible that the symptoms are unrelated.
I continue to be concerned about your bowel and bladder symptoms, and wonder if there is something else (either in addition to or as a result of the arachnoiditis) going on in your back. The symptoms you describe are reminiscent of a disease called the cauda equina syndrome which is compression of the little nerve rootlets that come off the very end of the spinal cord. This causes bowel and bladder symptoms as well as leg weakness. In some specific cases reported in the medical literature, arachnoiditis can cause this but it does not by all means do this commonly. Having Dr. Benzel take a fresh look at you and your films would be the best thing for you.
As for your questions,
1if the nerve compression continues and the symptoms worsen, there could be permanent damage depending on the actual cause, which means surgery may not be helpful if the damage is too far gone.
2. yes, we get referrals from U of Michigan (if that's what you mean by U of M)
3. as for typical arachnoiditis which is controversially associated with back pain alone, we find that surgery is not usually helpful.
Good luck
Thank you for listening to me, I hope I have helped some of you who have this disease and what to look out for.