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| Ulnar canal | |
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| Transverse section across the wrist and digits. | |
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| Superficial palmar nerves. |
The ulnar canal, also called Guyon's canal, is a potential space at the wrist between the pisiform bone and the hamate bone through which the ulnar artery and the ulnar nerve travel into the hand.
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Eponym
Guyon's canal was named after French surgeon Jean Casimir Félix Guyon (1831-1920).
Clinical significance
Entrapment of the ulnar nerve at the ulnar canal can result in ulnar neuropathy at the wrist.1 There are four subtypes of ulnar neuropathy at the wrist, of which type II is the most common. Guyon's canal syndrome may be secondary to ganglion cyst or compression against cycling handlebar.
References
- ^ Shea JD, McClain EJ (1969). "Ulnar nerve compression syndrome at and below the wrist". J Bone Joint Surg (Am) 51A: 1095–11031. PMID 5805411.
See also
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Wikipedia content modification information:
- This page was last modified on 28 May 2008, at 20:29.
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