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Spinal disc herniation

Summary of Spinal disc herniation
Spinal disc herniation describes a tear in the outer, fibrous ring of an intervertebral disc allowing the soft, central portion, called the nucleus pulposus to bulge out beyond the damaged outer rings. Disc herniation is usually due to age-related degeneration of the anulus fibrosus, although trauma, lifting injuries, and straining have been implicated. Tears are almost always posterolateral because of the posterior longitudinal ligament in the spinal canal. If the herniated disc is in the lumbar region the patient may also experience sciatica due to irritation of one of the nerve roots of the sciatic nerve.




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Spinal disc herniation


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High Yield Notes
15 pages

Spinal disc herniation

15 flashcards

USMLE® Step 1 style questions USMLE

5 questions

USMLE® Step 2 style questions USMLE

2 questions

A 45-year-old construction worker comes to the office because of 3-month pain in his lower back and anterior right thigh. The patient states that he routinely lifts heavy objects from the ground during work. Physical examination reveals decreased knee extension and hip adduction. An X-ray of the lower vertebral column is ordered. Which of the following abnormalities is most likely to be observed on the patient’s radiograph?

External References