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Ulnar nerve injury - McGowan classification


Grade 1: Purely subjective symptoms and mild hypaesthesia

Grade 2: Sensory loss and weakness of intrinsic hand muscles, with or without slight wasting

Grade 3: Severe sensorimotor deficit


Provide an explanation for key principles and pertinent aspects of the classification


Insert figures illustrating the classification


McGowan AJ. The results of transposition of the ulnar nerve for traumatic ulnar neuritis. J Bone Joint Surg Br. Aug 1950;32-B(3):293-301.

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