Cervical Radiculoneuropathy: Herniated Intervertebral Disk and Spondylosis

  • Michael Salcman
  • Roberto C. Heros
  • Edward R. LawsJr.
  • Volker K. H. Sonntag


Cervical radiculopathy may be caused by a ruptured intervertebral disk, spondylosis, or a combination of these two processes. Soft disk material extrudes when the posterior annulus ruptures after the nucleus pulposus herniates. Figure 35-1 illustrates a typical lateral extruded disk. Laterally, the posterior annulus is weakest and the posterior longitudinal ligament is thinnest. Consequently, most degenerated disks protrude in this area. Because the nerve root is stretched over this area as it enters the intervertebral foramen, even a small amount of extruded disk material can cause the symptoms and signs of radiculopathy.


Cervical Spine Vertebral Body Nerve Root Cervical Disk Posterior Longitudinal Ligament 
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Copyright information

© Springer-Verlag New York, Inc. 2004

Authors and Affiliations

  • Michael Salcman
    • 1
  • Roberto C. Heros
    • 2
  • Edward R. LawsJr.
    • 3
  • Volker K. H. Sonntag
    • 4
    • 5
  1. 1.Sinai HospitalBaltimoreUSA
  2. 2.Department of Neurological SurgeryUniversity of Miami School of MedicineMiamiUSA
  3. 3.Department of Neurological SurgeryUniversity of Virginia Health Sciences CenterCharlottesvilleUSA
  4. 4.University of ArizonaUSA
  5. 5.Barrow Neurological InstitutePhoenixUSA

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