Article

Planovalgus foot is a common pediatric deformity which may be associated with
pain. To evaluate flexibility of the foot, the heel raise test is used. During
this test the arch and hindfoot are assessed. Several studies have described
planovalgus foot based on 3D gait and standing analysis. However, no studies have
evaluated foot flexibility during heel raise using an objective 3D analysis.
Therefore, the purpose of this study is to evaluate the flexibility of
planovalgus feet during the heel raise test using an objective 3D assessment and
to determine whether any hypotheses can be generated about potential differences
between painful and painless flexible planovalgus feet and reference feet. Here,
3D foot analysis was conducted in 33 children (7 reference feet, 16 painless, and
10 painful flexible planovalgus feet) during the heel raise test. To identify the
characteristics of planovalgus foot, the concept of 3D projection angles was used
as introduced in the Heidelberg Foot Measurement Method (HFMM), with a modified
marker set. All feet showed dynamic movements of the medial arch and hindfoot
from valgus to varus position during heel raise. Reference feet had the smallest
range of motion, perhaps due to joint stability and absence of foot deformity.
Painful and painless flexible planovalgus feet demonstrated similar movements. No
significant differences were found between the painful and painless groups.
However, the kinematics of the pain group seemed to differ more from those of the
reference group than did kinematics of the painless group. This assessment is a
new, practical, and objective method to measure the flexibility of small
children's feet.
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Langue : ANGLAIS