Article

Several multisegment foot models have been proposed and some have been used to
study foot pathologies.
These models have been tested and validated on typically
developed populations; however application of such models to feet with
significant deformities presents an additional set of challenges. For the first
time, in this study, a multisegment foot model is tested for repeatability in a
population of children with symptomatic abnormal feet. The results from this
population are compared to the same metrics collected from an age matched (8-14
years) typically developing population. The modified Shriners Hospitals for
Children, Greenville (mSHCG) foot model was applied to ten typically developing
children and eleven children with planovalgus feet by two clinicians. Five
subjects in each group were retested by both clinicians after 4-6 weeks. Both
intra-clinician and inter-clinician repeatability were evaluated using static and
dynamic measures. A plaster mold method was used to quantify variability arising
from marker placement error. Dynamic variability was measured by examining trial
differences from the same subjects when multiple clinicians carried out the data
collection multiple times. For hindfoot and forefoot angles, static and dynamic
variability in both groups was found to be less than 4 degrees and 6 degrees
respectively. The mSHCG model strategy of minimal reliance on anatomical markers
for dynamic measures and inherent flexibility enabled by separate anatomical and
technical coordinate systems resulted in a model equally repeatable in typically
developing and planovalgus populations.
CI - Copyright (c) 2012 Elsevier B.V. All rights reserved.

Langue : ANGLAIS