| Fibre bundles in the human extensor carpi ulnaris tendon are arranged in a spiral. | |
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MedLine Citation:
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PMID: 22190565 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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The extensor carpi ulnaris musculotendinous unit has important agonist and antagonist action in wrist motion, including the dart-throwing action, and is a dynamic stabilizer of the distal radioulnar joint during forearm rotation. Despite its functional and clinical importance, little is known about its internal structure. Investigation of the ultrastructure of the human extensor carpi ulnaris (ECU) tendon was undertaken using plane polarized light microscopy and microcomputer tomography with 3D reconstruction. The study demonstrates that the tendon comprises fibre bundles (fascicles) approximately 0.1 mm in diameter that are arranged in a gradual spiral. The spiralling fibres make an angle of 8º to the longitudinal axis of the tendon. The spiral structure of the human ECU tendon has important biomechanical implications, allowing fascicular sliding during forearm rotation. The observed features may prevent injury. |
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Authors:
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N S Kalson; P S C Malone; R S Bradley; P J Withers; V C Lees |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-12-21 |
Journal Detail:
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Title: The Journal of hand surgery, European volume Volume: - ISSN: 2043-6289 ISO Abbreviation: J Hand Surg Eur Vol Publication Date: 2011 Dec |
Date Detail:
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Created Date: 2011-12-22 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101315820 Medline TA: J Hand Surg Eur Vol Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Plastic Surgery Department, University Hospital of South Manchester NHS Foundation Trust, Wythenshawe, Manchester, UK. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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