A lot of people have the perception that you have to have nerve root impingement from a herniated disc to have back pain. WRONG! There are a number of abnormalities in the spine and around the spine that can cause pain. A muscle strain/sprain can cause spasms which can be debilitating. Degenerative Disc Disease (Arthritis) can become syptomatic after a work injury. Annular tears which are tears in the annulus of the disc itself can cause chemical mediators to leak out and irritate the nerves. The SI Joint can become inflamed and mimic radicular type pain. It is important to understand the difference between Axial Back Pain (pain located just in the back with no radiating pain to the gluteus region, hips or lower extremities) and Radicular Back Pain which is caused by nerve root irritation. Please email Jason Krasno at email@example.com or call toll free at 1 800 952 9640 for more details.