Classification of disk herniations Flashcards
0
Q
Prolapse
A
Annular fibers disrupted
Nucleus has migrated through the inner laminar layers, still contained
1
Q
Protrusion
A
Annular fibers intact
A bulge
Localized annular bulge is usually lateral
Diffuse annular bulge is usually posterior
2
Q
Extrusion
A
Nucleus has broken through the outermost layer
3
Q
Sequestration
A
Nucleus separate from disk and is in the spinal or intervertebral canal
Outlook is good, the body will degrade the nucleus