Document Detail

Foot loading with an ankle-foot orthosis: the accuracy of an integrated physical strain trainer.
MedLine Citation:
PMID:  22358175     Owner:  NLM     Status:  MEDLINE    
PURPOSE: To investigate the value of a built-in physical strain trainer for the monitoring of partial weight bearing with an ankle-foot orthosis.
METHODS: 12 healthy volunteers were asked to perform three trials. Plantar peak pressure values from normal gait (trial one) were defined as 100% (baseline). The following trials were performed with the Vacoped® dynamic vacuum ankle orthosis worn in a neutral position with full weight bearing (trial two) and a restriction to 10% body weight (BW) (trial three), as monitored with an integrated physical strain trainer. Peak plantar pressure values were obtained using the pedar® X system.
RESULTS: Peak pressure values were statistically significantly reduced wearing the Vacoped® shoe with full weight bearing for the hindfoot to 68% of the baseline (normal gait) and for the midfoot and forefoot to 83% and 60%, respectively. Limited weight bearing with 10% BW as controlled by physical strain trainer further reduced plantar peak pressure values for the hindfoot to 19%, for the midfoot to 43% of the baseline and the forefoot to 22% of the baseline.
CONCLUSIONS: The Vacoped® vacuum ankle orthosis significantly reduces plantar peak pressure. The integrated physical strain trainer seems unsuitable to monitor a limitation to 10% BW adequately for the total foot. The concept of controlling partial weight bearing with the hindfoot-addressing device within the orthosis seems debatable but may be useful when the hindfoot in particular must be off-loaded.
Johannes Pauser; Andreas Jendrissek; Matthias Brem; Kolja Gelse; Bernd Swoboda; Hans-Dieter Carl
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Publication Detail:
Type:  Clinical Trial; Journal Article     Date:  2012-02-24
Journal Detail:
Title:  International orthopaedics     Volume:  36     ISSN:  1432-5195     ISO Abbreviation:  Int Orthop     Publication Date:  2012 Jul 
Date Detail:
Created Date:  2012-06-25     Completed Date:  2012-10-31     Revised Date:  2013-07-17    
Medline Journal Info:
Nlm Unique ID:  7705431     Medline TA:  Int Orthop     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  1411-5     Citation Subset:  IM    
Division of Orthopedic Rheumatology, Friedrich-Alexander-University of Erlangen-Nuremberg, Erlangen, Germany.
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MeSH Terms
Ankle Injuries / therapy*
Ankle Joint*
Foot / physiology*
Materials Testing
Orthotic Devices*
Physical Therapy Modalities / instrumentation*
Reproducibility of Results
Walking / physiology
Weight-Bearing / physiology*

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

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