Effects of socket size on metrics of socket fit in trans-tibial prosthesis users

Highlights • Gait, activity, morning-to-afternoon limb fluid volume changes, and self-report measures were assessed on people with trans-tibial limb loss after wearing a duplicate socket and a size-modified socket, each for 4 weeks. • Step time asymmetry, step width asymmetry, anterior and anterior-...

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Bibliographic Details
Published in:Medical engineering & physics 2017-06, Vol.44, p.32-43
Main Authors: Sanders, Joan E, Youngblood, Robert T, Hafner, Brian J, Cagle, John C, McLean, Jake B, Redd, Christian B, Dietrich, Colin R, Ciol, Marcia A, Allyn, Katheryn J
Format: Article
Language:English
Subjects:
Accommodation
Amputation Stumps
Amputee prosthetics
Female
Gait
Humans
Limb volume
Male
Middle Aged
Outcome assessment
Patient Satisfaction
Prosthesis Design
Radiology
Self Report
Socket fit
Tibia - physiology
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Summary:Highlights • Gait, activity, morning-to-afternoon limb fluid volume changes, and self-report measures were assessed on people with trans-tibial limb loss after wearing a duplicate socket and a size-modified socket, each for 4 weeks. • Step time asymmetry, step width asymmetry, anterior and anterior-distal morning-to-afternoon fluid volume change, socket comfort score, and sub-scales of the Prosthesis Evaluation Questionnaire may be viable metrics for early detection of deterioration in socket fit. • Use of a sock thickness caliper with an applied pressure of 101.2 kPa may allow a practitioner to easily measure sock thickness and assess socket oversizing.
ISSN:1350-4533
1873-4030
DOI:10.1016/j.medengphy.2017.03.003