Seddon-Sunderland classification
Nerve injury Grade 1: Neuropraxia
Grade 2: Axonotmesis
Grade 3: Neurotmesis with preservation of perineurium Neurotmesis refers to disruption of supporting structures
Grade 4: Neurotmesis with preservation of epineurium
Grade 5: Neurotmesis with complete transection of nerve trunk
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 |