Im sure I have seen a member who has posted at some stage who has had fusion done - I hope they see your thread and give you some feedback.
Sorry Im no help and sorrier you are suffering.
Crohn's Disease, Ankylosing Spondylitis
Current meds: Methotrexate, Humira
Bowel Resection Sept. 07
Forum Moderator - Rheumatoid Arthritis