Slipped Disc

What is an Intervertebral Disc? Each disc consists of an annulus fibrosus; an outer ring of fibrocartilage, and a nucleus pulposus; an inner gelatinous substance. Discs are attached to the adjacent vertebra above and below in the cervical (neck), thoracic and lumbar spine. The discs form strong joints, allowing various movements of the spine and absorb shock.

Slipped disc is a poor description; they cannot slip because they are attached to the bone above and below. The term ‘slipped disc’ often means disc damage such as a bulge or tear.

A disc may be described as prolapsed, herniated, bulging, sequestrated or an extrusion depending on the level of damage. Pressure on the adjoining nerve roots may cause pain and symptoms such as muscle weakness, pins and needles or numbness into the left / right or both legs (sciatica).