Classification of Nerve Injuries
Nerve injury can result from compression, gun shoot, stapping injuries or iatrogenic injuries. The most widely used classification…
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- Nerve injury can result from compression, gun shoot, stapping injuries or iatrogenic injuries.
- The most widely used classification of Nerve Injuries are Seddon and Sunderland Classification.
What is the classification of Nerve Injuries?
Seddon classification of nerve injuries (in 1941):
Seddon classification of nerve injuries
|Neurapraxia||Paralysis in the absence of peripheral degeneration.||The delay in recovery may be long, but recovery will be complete.|
|Axonotmesis||Damage to nerve fibers with complete peripheral degeneration but with intact of the Schwann sheath which provide support for accurate spontaneous regeneration. ||Good recovery is anticipated, and no intervention can improve the outcome.|
Complete recovery depends on a number of factors, including timely removal of the compression and axon regeneration.
|Neurotmesis||All essential structures, both neural and supporting tissues, have been disrupted. This category includes neuroma in continuity, division of nerves, and anatomic disruption.||Recovery rarely is complete, and the amount of loss can only be determined over time.|
See Also: Brachial Plexus Palsy
Sunderland classification of nerve injuries (in 1978):
Sunderland classification of nerve injuries
|I||In this injury all structures are preserves, but conduction is temporarily blocked.|
|II||In this injury, wallerian degeneration occurs, but endoneurial integrity is maintained and recovery is complete.|
|III||This Injury adds endoneurial destruction and internal fascicular disorganization . recovery is poorer, with possible cross-regeneration.|
|IV||This injury characterized by complete internal disorganization, but some continuity of external structure remains.|
|V||This injury involves complete disruption of all nerve structures.|
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