Journal of Rehabilitation Research & Development (JRRD)

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Volume 53 Number 6, 2017
   Pages 1107 — 1120

Abstract — Preliminary evaluation of a novel bladder-liner for facilitating residual- limb fluid volume recovery without doffing

Joan E. Sanders, PhD;* Christian B. Redd, MS; John C. Cagle, BS; Brian J. Hafner, PhD; David Gardner, MSME; Katheryn J. Allyn, CPO; Daniel S. Harrison, BS; Marcia A. Ciol, PhD

Department of Bioengineering, University of Washington, Seattle, WA

Abstract — For people who wear a prosthetic limb, residual- limb fluid volume loss during the day may be problematic and detrimentally affect socket fit. The purpose of this research was to test the capability of a novel liner with adjustable bladders positioned within its wall to mitigate volume loss and facilitate limb fluid volume recovery and retention. Bioimpedance analysis was used to monitor fluid volume changes in the anterior and posterior residual limb of participants with transtibial amputation. Participants underwent six cycles of sitting for 90 s, standing for 90 s, and walking for 5 min with liquid within the bladder-liners. Between the third and fourth cycles, participants sat for 10 min with liquid left within the bladders (Liquid-In) or removed (Liquid-Out). Results showed that participants recovered more fluid volume during the 10 min of sitting with Liquid-Out than Liquid-In (p = 0.09 for anterior and p = 0.04 for posterior). However, those fluid volume recoveries were not well retained in the short term (after the fourth cycle) or the long term (after the sixth cycle). Physiologic differences between sessions, reflected in the rates of fluid volume change at the outset of the session, and excessive stiffness of the bladder-liners may have affected fluid volume retentions.

Key words: accommodation, amputation, bioimpedance, bladder liquid, limb loss, prosthetic limb, residual limb, retention, transtibial amputation, volume.

View HTML ?? View PDF ?? Contents Vol. 53, No. 6
This article and any supplementary material should be cited as follows:
Sanders JE, Redd CB, Cagle JC, Hafner BJ, Gardner D, Allyn KJ, Harrison DS, Ciol MA. Preliminary evaluation of a novel bladder-liner for facilitating residual-limb fluid volume recovery without doffing. J Rehabil Res Dev. 2016;53(6):1107–20.
ORCID: Joan E. Sanders, PhD: E-8204- 2011; Brian J. Hafner, PhD: M-6322-2013; Marcia A. Ciol: 0000-0001-6406-4706

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