Nerve Injury Classification

Nerve Injury Classification
Sunderland Seddon Injury Recovery Potential
I Neuropraxia Ionic block;
possible segmental demyelinization
II Axonotmesis Axon severed;
Endoneurial tube intact
III Endoneurial tube torn Slow; incomplete
IV Only epineurium intact Neuroma-in-continuity
V Neurotmesis Loss of Continuity None
VI Combination of above Unpredictable

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