Article

Due to blocking of pronation /dorsiflexion in flexible flat foot and
restriction of these movements in using the University of California Berkeley
Laboratory orthosis, provided pressures in sole by the orthosis were increased.
Therefore, this article describes the evaluation of modified foot orthosis with
flexible structure in the management of individuals with flexible flat foot. METHOD: The patient was a 21-year-old male who had symptomatic
flat foot. The modified foot orthosis included movable surface and the outside
structure. The modified foot orthosis was evaluated by standing foot X-ray,
comfort rate, electromyography of leg muscle and vertical ground reaction force
during walking. FINDINGS AND OUTCOMES: The modified foot orthosis improved the
foot alignment and decreased the symptoms of flat foot with more comfort.
Subtalar position by sub-maximum supination had higher position than neutral in
sagittal plane. It may increase the muscle activity of peroneus longus by 7%
compared to barefoot, and there was a decrease of 11% ground reaction force in
mid stance. CONCLUSION: The result of this single case evaluation only proposed
the feasibility of this modified insole as the orthotic treatment in flexible
flat foot. Clinical relevance The modified foot orthosis, which is mobile in the
midfoot, is an orthosis for walking and standing in subjects with flexible flat foot.
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Langue : ANGLAIS