Document Detail

How do sock ply changes affect residual-limb fluid volume in people with transtibial amputation?
MedLine Citation:
PMID:  22773526     Owner:  NLM     Status:  MEDLINE    
The purpose of this research was to investigate the influence of sock addition and removal on residual-limb fluid volume in people using prosthetic limbs. We used bioimpedance analysis to measure residual-limb extracellular fluid volume on 28 transtibial amputee subjects during 30 min test sessions. Upon addition of a one-ply polyester sock, residual-limb fluid volume changes ranged from -4.0% to 0.8% (mean -0.9 +/- 1.3%) of the initial limb fluid volume. Changes for sock removal ranged from -1.2% to 2.8% (mean 0.5 +/- 0.8%). Subjects who reduced in fluid volume with both addition and removal of a sock and subjects with high positive ratios between the fluid-volume loss upon sock addition and gain upon sock removal (high add/remove [AR] ratios) tended to have arterial disease, were obese, and were smokers. Subjects with low positive AR ratios, subjects who increased in fluid volume both with sock addition and removal, and a single subject who increased in fluid volume with sock addition and decreased with sock removal tended to be nonsmokers and either individuals in good health without complications or individuals without arterial problems. Results are relevant for the anticipation of limb volume changes during prosthetic fitting and toward the design of adjustable-socket technologies.
Joan E Sanders; Daniel S Harrison; Katheryn J Allyn; Timothy R Myers; Marcia A Ciol; Elaine C Tsai
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of rehabilitation research and development     Volume:  49     ISSN:  1938-1352     ISO Abbreviation:  J Rehabil Res Dev     Publication Date:  2012  
Date Detail:
Created Date:  2012-07-09     Completed Date:  2012-09-19     Revised Date:  2013-05-13    
Medline Journal Info:
Nlm Unique ID:  8410047     Medline TA:  J Rehabil Res Dev     Country:  United States    
Other Details:
Languages:  eng     Pagination:  241-56     Citation Subset:  IM    
Department of Bioengineering, University of Washington, Seattle, WA 98195, USA.
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MeSH Terms
Amputation Stumps / physiopathology*
Amputees / rehabilitation*
Ankle Brachial Index
Artificial Limbs*
Blood Pressure
Body Mass Index
Electric Impedance
Extracellular Fluid / physiology*
Middle Aged
Prosthesis Fitting
Tibia / surgery
Young Adult
Grant Support

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

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