I am not a doctor but my son has had both of these test many times. A ct shows bone. A mri is the better test for nerves, cord, and disc etc. It is much clearer. In my sons case ct missed his cord contusion and compression fractures. Ct only showed a small fracture to the bone.
Unfortunately everthing I have read regarding fusion and surgeries in the spinal vertebrae, there is always pain. I believe it takes one year for the spinal vertabrae to heal. This is what we were told by two Neuro-surgeons and one Orthopedic Doc. Obviously you had a major surgery. Even after the one year mark, you will still have pain.
Has your quality of life gotten better since surgery? I would if you have not yet, get a second opinion.
Diana
Please give me advice on this if you can. I appreciate any help that I can get. Thank you