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Arq Neuropsiquiatr. 2001 Mar;59(1):106-11.

Surgical management of Guyon's canal syndrome, an ulnar nerve entrapment at the wrist: report of two cases.

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Peripheral Nerve Group, Division of Neurosurgery, Medical School, São Paulo University, São Paulo, Brazil.


Guyon's canal syndrome, an ulnar nerve entrapment at the wrist, is a well-recognized entity. The most common causes that involve the ulnar nerve at the wrist are compression from a ganglion, occupational traumatic neuritis, a musculotendinous arch and disease of the ulnar artery. We describe two cases of Guyon's canal syndrome and discuss the anatomy, aetiology, clinical features, anatomical classification, diagnostic criteria and treatment. It is emphasized that the knowledge of both the surgical technique and anatomy is very important for a satisfactory surgical result.

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