Guyon canal syndrome: clinical features
Written and reviewed by Dr Ibrahim Imam, Consultant Neurologist. Last reviewed .
Guyon canal syndrome: clinical features. There is hypothenar muscle weakness and wasting. Fully referenced neurology checklist.
Motor features
- There is hypothenar muscle weakness and wasting
- This may involve just the abductor digiti minimi
- The hypothenar muscles are spared if the lesion is beyond Guyon canal
Sensory features
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Froment’s sign
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Palmaris brevis sign6
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Associated features
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References
- Ozdemir O, Calisaneller T, Gerilmez A, Gulsen S, Altinors N. Ulnar nerve entrapment in Guyon's canal due to a lipoma. J Neurosurg Sci 2010; 54:125-127.
- Liveson JA. Peripheral Neurology: Case Studies. Third edition. Oxford University Press Oxford 2000 p91.
- Bertorini TE. Neuromuscular Case Studies. Butterworth Heinemann Philadelphia. 2008 p123.
- Kumar K, Thirkannad S. Isolated abductor digiti minimi palsy-an unusual case of Guyon's canal compression. Hand Surg 2013; 18:251-253.
- Murata K, Shih JT, Tsai TM. Causes of ulnar tunnel syndrome: a retrospective study of 31 subjects. J Hand Surg Am 2003; 28:647-651.
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