Tramacet will not alter your AS disease course. It is only an analgesic with NO anti-inflammatory properties. AS has a course that runs independent of the IBD course. There is a type of peripheral arthritis that tends to improve with colectomy, but not AS. I was diagnosed with enteropathic arthritis (a spondylitis similar to AS) after about 20 years of symptoms.
I was able to take high dose NSAIDs for my enteropathic arthritis for about a decade before liver inflammation and pouchitis forced me to stop. Since 2005 I have been taking one biologic or another, currently Cimzia. I also take NSAIDs for short courses when I have a flare, and even prednisone if it is really bad. I am not in perfect shape, but I function OK. Current research indicates that early medical intervention does help slow progression.
I would skip your primary doc's advice and seek a more expert opinion from your rheumatologist. The best site I have found for spondylitis information is here:
http://www.spondylitis.org/Lea...dylitis#.VfiHtsRHarU
Jan 