Classification of Peripheral Nerve Injury - Seddon's classification , Sunderland's classification

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Classification of Peripheral Nerve Injury - Seddon's classification, Sunderland's classification - Physiology animations

Seddon proposed a classification of nerve injury in 1942 which is still in use today. Injuries are defined as neurapraxia, axonotmesis, and neurotmesis (, based upon the severity and extent of injury to the structural components of the peripheral nerve, including Schwann cells, axons, and surrounding connective tissue.

A second classification was proposed in 1990 by Sunderland, who divided nerve injuries into five grades. Grade I corresponds to neurapraxia; II to axonotmesis; and III, IV, and V to neurotmesis. Grades III, IV, and V are distinguished by the extent to which perineural and epineural tissues are disrupted so that the prognosis for recovery is better for Grade III lesions. Grade V lesions correspond to severed nerves or nerves disrupted by scar tissue to the extent that no significant regeneration can occur across the area of injury.

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Видео Classification of Peripheral Nerve Injury - Seddon's classification , Sunderland's classification канала Dr.G Bhanu Prakash Animated Medical Videos