Peripheral nerve injury grading simplified on MR neurography: As referenced to Seddon and Sunderland classifications

Avneesh Chhabra, Shivani Ahlawat, Allan Belzberg, Gustav Andreseik

Research output: Contribution to journalArticle


The Seddon and Sunderland classifications have been used by physicians for peripheral nerve injury grading and treatment. While Seddon classification is simpler to follow and more relevant to electrophysiologists, the Sunderland grading is more often used by surgeons to decide when and how to intervene. With increasing availability of high-resolution and high soft-tissue contrast imaging provided by MR neurography, the surgical treatment can be guided following the above-described grading systems. The article discusses peripheral nerve anatomy, pathophysiology of nerve injury, traditional grading systems for classifying the severity of nerve injury, and the role of MR neurography in this domain, with respective clinical and surgical correlations, as one follows the anatomic paths of various nerve injury grading systems.

Original languageEnglish (US)
Pages (from-to)217-224
Number of pages8
JournalIndian Journal of Radiology and Imaging
Issue number3
StatePublished - Aug 2014



  • Axonotmesis
  • MR neurography
  • Seddon
  • Sunderland
  • injury
  • neuroma-in-continuity
  • neurotmesis
  • peripheral nerve

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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