Document Detail


Intraneural blood flow analysis during an intraoperative Phalen's test in carpal tunnel syndrome.
MedLine Citation:
PMID:  20108328     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Phalen's test has been one of the most significant of clinical signs when making a clinical diagnosis of idiopathic carpal tunnel syndrome (CTS). However, it is unknown whether intraneural blood flow changes during Phalen's test in patients with CTS. In this study, an intraoperative Phalen's test was conducted in patients with CTS to observe the changes in intraneural blood flow using a laser Doppler flow meter. During Phalen's test, intraneural blood flow showed a sharp decrease, which lasted for 1 min. Intraneural blood flow decreased by 56.7%-100% (average, 78.0%) in the median nerve relative to the blood flow before the test. At 1 min after completing the test, intraneural blood flow returned to the baseline value. After carpal tunnel release, there was no marked decrease in intraneural blood flow. This study demonstrated that the blood flow in the median nerve is reduced when Phalen's test is performed in vivo.
Authors:
Takafumi Yayama; Shigeru Kobayashi; Kousuke Awara; Kenichi Takeno; Tsuyoshi Miyazaki; Masafumi Kubota; Kohei Negoro; Hisatoshi Baba
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of orthopaedic research : official publication of the Orthopaedic Research Society     Volume:  28     ISSN:  1554-527X     ISO Abbreviation:  J. Orthop. Res.     Publication Date:  2010 Aug 
Date Detail:
Created Date:  2010-06-24     Completed Date:  2010-07-19     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8404726     Medline TA:  J Orthop Res     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1022-5     Citation Subset:  IM    
Copyright Information:
Copyright 2010 Orthopaedic Research Society. Published by Wiley Periodicals, Inc.
Affiliation:
Faculty of Medical Sciences, University of Fukui, 23-3, Shimoaizuki, Matsuoka, Eiheiji, Fukui, Japan 910-1193.
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MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Carpal Tunnel Syndrome / physiopathology*
Electrodiagnosis
Female
Humans
Male
Median Nerve / blood supply*,  physiopathology
Middle Aged
Neural Conduction*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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