Document Detail


Gliding resistance of flexor tendon associated with carpal tunnel pressure: a biomechanical cadaver study.
MedLine Citation:
PMID:  20661935     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The purpose of this study was to investigate the effect of carpal tunnel pressure on the gliding characteristics of flexor tendons within the carpal tunnel. Eight fresh human cadaver wrists and hands were used. A balloon was inserted into the carpal tunnel to elevate the pressure. The mean gliding resistance of the middle finger flexor digitorum superficialis tendon was measured with the following six conditions: (1) as a baseline, before balloon insertion; (2) balloon with 0 mmHg pressure; (3) 30 mmHg; (4) 60 mmHg; (5) 90 mmHg; (6) 120 mmHg. The gliding resistance of flexor tendon gradually increased as the carpal tunnel pressure was elevated. At pressures above 60 mmHg, the increase in gliding resistance became significant compared to the baseline condition. This study helps us to understand the relationship between carpal tunnel pressure, which is elevated in the patient with carpal tunnel syndrome (CTS) and tendon gliding resistance, which is a component of the work of flexion. These findings suggest that patients with CTS may have to expend more energy to accomplish specific motions, which may in turn affect symptoms of hand pain, weakness and fatigue, seen commonly in such patients.
Authors:
Chunfeng Zhao; Anke M Ettema; Lawrence J Berglund; Kai-Nan An; Peter C Amadio
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural    
Journal Detail:
Title:  Journal of orthopaedic research : official publication of the Orthopaedic Research Society     Volume:  29     ISSN:  1554-527X     ISO Abbreviation:  J. Orthop. Res.     Publication Date:  2011 Jan 
Date Detail:
Created Date:  2010-11-24     Completed Date:  2011-01-11     Revised Date:  2014-09-11    
Medline Journal Info:
Nlm Unique ID:  8404726     Medline TA:  J Orthop Res     Country:  United States    
Other Details:
Languages:  eng     Pagination:  58-61     Citation Subset:  IM    
Copyright Information:
Copyright © 2010 Orthopaedic Research Society.
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MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Aged, 80 and over
Biomechanical Phenomena
Cadaver
Carpal Bones / physiology*
Carpal Tunnel Syndrome / etiology*,  physiopathology
Female
Humans
Male
Middle Aged
Pressure
Tendons / physiology*
Grant Support
ID/Acronym/Agency:
AR49823/AR/NIAMS NIH HHS; R01 AR044391/AR/NIAMS NIH HHS; R01 AR049823/AR/NIAMS NIH HHS; R01 AR049823-04/AR/NIAMS NIH HHS
Comments/Corrections

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