Back injuries result from damage, wear, or trauma to the bones, muscles, or other tissues of the back. Common back injuries include sprains and strains, herniated discs, and fractured vertebrae.[1] The lumbar spine is often the site of back pain. The area is susceptible because of its flexibility and the amount of body weight it regularly bears.[2] It is estimated that low-back pain may affect as much as 80 to 90 percent of the general population in the United States.[3]