Article

Planovalgus foot deformity is common in children with cerebral palsy. Several
pathologies contribute to the deformity. It begins with the lateral displacement
of the navicular and the talar head becomes uncovered and prominent in the medial
side of the midfoot.
The purpose of this study was to assess the correlation
between the radiographic and the pedobarographic measurements and the ability to
predict foot pressure components using radiographic measurement. The patient
sample included 43 patients with cerebral palsy who were ambulatory and had
planovalgus foot deformity (76 feet). Medial midfoot pressure showed correlation
with talonavicular uncoverage index, talonavicular angle, medial arch angle,
Meary angle, and lateral talocalcaneal angle. Heel impulse showed negative
correlation with talonavicular uncoverage index and talonavicular angle. Simple
linear regression was used to assess the relationship between radiographic and
foot pressure component measurements. For every unit change in talonavicular
uncoverage index, the predicted value of medial midfoot pressure was [9.9+27
(talonavicular uncoverage index)]. This equation accounted for 17.9% of the
changes in the medial midfoot pressure. Tibial foot angle and maximum knee
extension also contributed to the heel impulse. The radiographic indices of the
planovalgus foot can explain the changes in some foot pressure components.
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Langue : ANGLAIS