Compression Fractures Normal Abnormal Compression fractures occur when the bones of the spine break by pressing on themselves. Most often, this is caused by weakened spinal bones due to such conditions as Osteoporosis or cancer (off the bone). Back pain along spine Loss of height Osteoporosis Cancer metastasis Tumor invasion Multiple Myeloma Spine X-Rays Spinal CT scan or MRI if diagnosis is unclear Anti-inflammatory or narcotic pain medications as needed Support braces help some patients. Since Osteoporosis is the most common cause, prevention with exercise, hormone replacement, and other medications as indicated, is advised (see section on Osteoporosis). Back Muscle Spasm Osteoarthritis of the spine Herniated disc Spinal stenosis Ankylosing Spondylitis Epidural Abscess