| Sonographic measurements of subsynovial connective tissue thickness in patients with carpal tunnel syndrome. | |
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MedLine Citation:
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PMID: 22215766 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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Objectives- A major pathologic finding in patients with idiopathic carpal tunnel syndrome is noninflammatory fibrosis and thickening of the subsynovial connective tissue. The objective of this study was to determine the ability of sonography to depict this thickening by comparing subsynovial connective tissue thickness in patients with carpal tunnel syndrome and healthy control participants. Methods- Longitudinal sonograms of the middle finger superficial flexor tendon and subsynovial connective tissue were obtained at 3 levels: at the wrist crease (proximal tunnel), at the hook of the hamate (mid tunnel), and at the distal edge of the transverse carpal ligament (distal tunnel). The thickness of the subsynovial connective tissue perpendicular to the direction of the tendon and the diameter of the flexor digitorum superficialis tendon at the same level were measured. Then, a thickness ratio was created. Results- At all 3 levels, the subsynovial connective tissue was thicker in patients than in controls (P < .0001) with a thickness ranging from 0.60 to 0.63 mm in patients and 0.46 to 0.50 mm in controls. The thickness ratio was significantly greater in patients at the hamate and distal levels (P = .018 and .013, respectively). Conclusions- With this study, we have shown that it is possible to measure subsynovial connective tissue thickness with sonography, and the tissue is thicker in patients with carpal tunnel syndrome than in healthy controls. |
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Authors:
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Margriet H M van Doesburg; Aebele Mink van der Molen; Jacqueline Henderson; Stephen S Cha; Kai Nan An; Peter C Amadio |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine Volume: 31 ISSN: 1550-9613 ISO Abbreviation: J Ultrasound Med Publication Date: 2012 Jan |
Date Detail:
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Created Date: 2012-01-04 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8211547 Medline TA: J Ultrasound Med Country: United States |
Other Details:
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Languages: eng Pagination: 31-6 Citation Subset: IM |
Affiliation:
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Orthopedic Biomechanics Laboratory, Division of Orthopedic Research, Mayo Clinic, 200 First St SW, Rochester, MN 55905 USA. pamadio@mayo.edu. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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