WebNeurosurg
  • Inicio
  • Recursos
    • Escalas >
      • Clasificación Knosp
    • Guías de práctica clínica
    • Anatomia >
      • Generalidades de anatomia
      • Anatomia 3D
      • Abordajes 3D
    • Base de datos
    • Journals
    • Videogaleria >
      • Videos Helsinki
    • Publicaciones
  • Weblinks
    • blog TRAUMA
    • Journals
    • Sociedades
  • New Page

Seddon-Sunderland classification

Nerve injury

Grade 1: Neuropraxia

  • Conduction disruption with intact axon and preserved supportive structures.
  • Prognosis: normally full recovery in days-weeks without surgical intervention



Grade 2: Axonotmesis

  • Disrupted axon with intact endoneurium; Wallerian degeneration takes place after 1-2 weeks
  • Prognosis: variable recovery, worse prognosis for proximal injuries and injuries who do not successfully re-implant in the muscle within 18 months





Grade 3: Neurotmesis with preservation of perineurium

Neurotmesis refers to disruption of supporting structures
  • Endoneurium is disrupted
  • Prognosis: 60-80% recovery





Grade 4: Neurotmesis with preservation of epineurium

  • Prognosis: nerve grafting is required





Grade 5: Neurotmesis with complete transection of nerve trunk

  • Prognosis: bypass / jump grafting is required







Reference

http://wiki.cns.org/wiki/index.php/Injury,_Classification


Nerve Conduction Studies and Electromyography in the Evaluation of Peripheral Nerve Injuries  DIANNA QUAN, M.D. AND SHAWN J. BIRD, M.D.The University of Pennsylvania Orthopaedic Journal 12: 45–51, 1999© 1999 The University of Pennsylvania Orthopaedic Journal

Powered by Create your own unique website with customizable templates.