It sounds as if Bob is affected primarily or mainly by spinal disorders, not spinal cord injury (i.e., paralysis and/or loss of sensation/function due to cord injury, not orthopedic injury or problems).

You're likely to see an increase in responses and info. by posting to the Spinal Disorders forum:

http://neurotalk.psychcentral.com/forumdisplay.php?f=22

Best to you .