The spinal vertebrae are separated by cartilage disks, filled with a gelatinous substance, that provide cushioning to the spinal column. These disks may herniate or rupture from trauma or strain , especially if degenerative changes have occurred in the disk. Radiculopathy refers to any disease condition of the spinal nerve roots.
Most herniation takes place in the lumbar area of the spine.
Disk herniation occur more frequently in middle aged and older men, especially those involved in strenuous physical activity . Other risk factors include any congenital conditions that affect the size of the lumbar spinal canal. A physical examination and history of pain may be sufficient to diagnose the disorder. A neurological examination will be performed to evaluate muscle reflexes, sensation, and muscle strength. Often examination of the spine will reveal a decrease in the spinal curvature in the affected area.