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Acute Herniation of Nondegenerate Nucleus Pulposus: Acute Noncompressive Nucleus Pulposus Extrusion and Compressive Hydrated Nucleus Pulposus Extrusion.

Authors
  • De Decker, Steven1
  • Fenn, Joe2
  • 1 Department of Clinical Science and Services, Royal Veterinary College, University of London, Hatfield, Hertfordshire, UK. Electronic address: [email protected]
  • 2 Department of Clinical Science and Services, Royal Veterinary College, University of London, Hatfield, Hertfordshire, UK.
Type
Published Article
Journal
The Veterinary clinics of North America. Small animal practice
Publication Date
Jan 01, 2018
Volume
48
Issue
1
Pages
95–109
Identifiers
DOI: 10.1016/j.cvsm.2017.08.004
PMID: 28964544
Source
Medline
Keywords
License
Unknown

Abstract

Acute herniation of nondegenerate nucleus pulposus material is an important and relative common cause of acute spinal cord dysfunction in dogs. Two types of herniation of nondegenerate or hydrated nucleus pulposus have been recognized: acute noncompressive nucleus pulposus extrusion (ANNPE) and acute compressive hydrated nucleus pulposus extrusion (HNPE). Spinal cord contusion plays an important role in the pathophysiology of both conditions. Sustained spinal cord compression is not present in ANNPE, whereas varying degrees of compression are present in HNPE. Although affected animals often present with severe neurologic signs, good outcomes can be achieved with appropriate treatment.

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