Millions of adults suffer from back pain every year. Most cases of back pain are related to degenerative conditions. These disorders can lead to instability and intrusion into the spinal cord as well as the nearby nerves, causing pain in the back or pain that radiates down the arms or legs. For most patients with chronic back pain, the initial treatment choices include conservative measures such as pain medications, rest, physical therapy, and chiropractic care. Sometimes, steroid injections may be used. These treatments work for many patients, but for others, they are not enough.