Disc herniation may vary in severity from disc protrussion to disc extrusion, to finally disc sequestration.

Disc containment:
With a contained disc herniation, the disc material herniated through the inner annulus but not the outer annulus. The material is therefore contained, but still can distort the path of the nerve.
With a non contained herniation, the disc material penetrates both the inner and out layers of the annulus. The material may reside beneath the posterior longitudinal ligament or may penetrate through it, or can be sequestered as a free fragment

We offer a solution for contained disc herniation.
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