cervicaler Discusprolaps

cervicaler Discusprolaps

Disc herniation refers to the displacement of intervertebral disc material beyond the normal confines of the disc but involving less than 25% of the circumference (to distinguish it from a disc bulge). A herniation may contain nucleus pulposus, vertebral endplate cartilage, apophyseal bone/osteophyte and annulus fibrosus.

Disc herniations can be divided into groups in a variety of ways. Commonly they are divided into protrusion vs extrusion:

• protrusion
  • base wider than herniation
  • confined to disc level
  • outer annular fibers intact
• extrusion
  • base (a.k.a. neck) narrower than herniation 'dome'
  • may extend above or below endplates or adjacent vertebrae
  • complete annular tear with passage of nuclear material beyond disc annulus
  • disc material can then migrate away from annulus or become sequestered

Herniations can further be classified as:

• contained
  • with intact outer fibers of annulus fibrosus and posterior longitudinal ligament, or
  • with intact posterior longitudinal ligament alone 
• not contained
  • tear of outer fibers of annulus fibrosus and posterior longitudinal ligament

See also

• lumbar disc disease
• intervertebral disc disease nomenclature

Siehe auch:

• Diskusprolaps
• foraminaler Diskusprolaps
• mediolateraler Diskusprolaps
• intraforaminaler Diskusprolaps
• lateraler Diskusprolaps
• medianer Diskusprolaps
• extraforaminaler Diskusprolaps

und weiter:

• Cervicobrachialgie