Disc Herniation Wheeless

Description: Wheeless' Textbook of Orthopaedics
disc herniation may vary in severity from disc protrussion to disc extrusion, to finally disc sequestration; - disc containment: - w/ 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; - w/ 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