- Has low back pain that is related to, or known to be caused by malignancy, inflammatory disease (rheumatoid arthritis, ankylosing spondylitis, psoriatic arthritis, Reiter's syndrome), osteoporosis, ochronosis, vertebral fracture, infection, juvenile scoliosis, congenital malformation, or fibromyalgia. Note: the presence of radiographic degenerative disc disease is not an exclusion;