Nerve injury classification

Nerve injury classification assists in prognosis and determination of treatment strategy for nerve injuries. Classification was described by Seddon in 1943 and by Sunderland in 1951.^[1] In the lowest degree of nerve the nerve remains intact, but signaling ability is damaged, termed neurapraxia. In the second degree the axon is damaged, but the surrounding connecting tissue remains intact – axonotmesis. The last degree, in which both the axon and connective tissue are damaged, is called neurotmesis.