| Scanning electron microscopic findings of the gliding surface of the A1 pulley in trigger fingers and thumbs. | |
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MedLine Citation:
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PMID: 17399869 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The gliding surface of the A1 pulley was studied in 20 cases of primary trigger finger by scanning and transmission electron microscope. In 12 normal specimens, the whole deep surface was covered uniformly by an amorphous extracellular matrix. In the pathological samples, there was the same general surface appearance but, also, areas, varying in shape and dimension where loss of the extracellular matrix had exposed the collagen fibres and a few cells of the middle layer of the pulley. There were also changes typical of "chondroid-metaplasia". These data were confirmed by transmission electron microscopy. The fragmented areas are probably the result of altered forces of friction between the pulley and the flexor tendon and may be the "gate" through which the forces of friction cause chondroid-metaplasia in the underlying fibrous tissue, a phenomenon recognised to be one step in the pathogenesis of trigger finger. |
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Authors:
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M C Sbernardori; V Mazzarello; P Tranquilli-Leali |
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Publication Detail:
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Type: Journal Article Date: 2007-03-30 |
Journal Detail:
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Title: The Journal of hand surgery, European volume Volume: 32 ISSN: 1753-1934 ISO Abbreviation: - Publication Date: 2007 Aug |
Date Detail:
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Created Date: 2007-10-22 Completed Date: 2007-11-30 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101315820 Medline TA: J Hand Surg Eur Vol Country: England |
Other Details:
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Languages: eng Pagination: 384-7 Citation Subset: IM |
Affiliation:
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Department of Orthopaedics, University School of Medicine, Sassari, Italy. mcsbernardori@tiscali.it |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adult Aged Collagen / ultrastructure Connective Tissue / pathology Extracellular Matrix / pathology Female Humans Male Metaplasia Microscopy, Electron, Scanning* Microscopy, Electron, Transmission Middle Aged Reference Values Tendons / pathology*, surgery Trigger Finger Disorder / pathology*, surgery |
| Chemical | |
Reg. No./Substance:
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9007-34-5/Collagen |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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