Evaluation and Grading of Peripheral Nerve Injuries

Abstract

Peripheral nerve injury can be caused by many etiologies including ischemic, mechanical, chemical, thermal and inflammatory insults and affects sensory, motor and autonomic function. In this article we will review the classification of nerve injury, examination of a patient with a suspected nerve injury and useful supplementary diagnostic tools including electromyography, ultrasound and magnetic resonance neurography. The aforementioned are all critical parts in determining whether spontaneous recovery is possible or if, and when, surgical intervention including neurolysis, direct repair, grafting or nerve transfer should be considered.