The discs in your back are made up of a “yolk” (called the nucleus), which is surrounded by fibres known as the annulus fibrosus. The structure of the gel-like nucleus is made up of mostly water. A ...

Lumbar radiculopathy, or sciatic neuritis, is a condition that usually results from a pinched nerve or a herniated disc, though other causes are possible. Typical symptoms are weakness, pain, numbness ...

Your backbone, or spine, is made up of 26 bones called vertebrae. In between them are soft discs filled with a jelly-like substance. These discs cushion the vertebrae and keep them in place. As you ...

Neurosurgeon to the Spinal Injuries Unit, Royal North Shore Hospital and Departments of Neurosurgery, Royal North Shore and Dalcross Private Hospitals, Sydney, Australia Centre for Health, Exercise ...