A CT scan is valuable to determine if the fusion is solid but is less certain of a disc herniation diagnosis. If there is any question, a new MRI can be obtained as this study is better for the diagnosis of disc herniations.
It is interesting that the radiologist did not comment on the status of the fusion on the CT scan.
Donald Corenman, MD, DC is a highly-regarded spine surgeon, considered an expert in the area of neck and back pain. Trained as both a Medical Doctor and Doctor of Chiropractic, Dr. Corenman earned academic appointments as Clinical Assistant Professor and Assistant Professor of Orthopaedic Surgery at the University of Colorado Health Sciences Center, and his research on spine surgery and rehabilitation has resulted in the publication of multiple peer-reviewed articles and two books.