The vertebral column (bones), the intervertebral discs, the dural sac (the covering around the spinal cord) or the space around the spinal cord may become infected in a number of circumstances.

This animation describes spinal stenosis, a condition in which degenerative changes in the spine lead to pain and weakness in the back and legs.

Spinal refers to the spine. Stenosis is a medical term used to describe a condition where a normal-size opening has become narrow.

For patients with degenerative spinal conditions, one cause of their back pain may be synovial cysts.

Spine tumors may arise from any of the structures of the spine or the spinal column. They may arise in the cervical (neck), thoracic (mid-back) or lumbosacral (low back) regions.