Cervical disc disease

Includes herniated nucleus pulposus, degenerative disc disease and internal disc disruption.

Herniated nucleus pulposus indicates extension of annulus fibrosus beyond the posterior margin of the vertebral body.

Degenerative disc disease involves annular tears, loss of disc height and nuclear degradation.

Approximately 80-90% of people have disc generation on MRI imaging by the age of 50 years.

Internal disc disruption is related to annular fissuring of the disc without external deformation.

Radiculopathy can result from nerve root injury or compression by herniated discs or foraminal stenosis.

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