Pediatric pes planus, or flatfoot, is a common foot condition in children. Flatfoot is caused by loss of the medial longitudinal arch. There may be associated anatomical abnormalities, such as valgus position of the heel, medial rotation of the talus, and medial talar prominence. The incidence among children with flatfoot varies from 2.8% to 24.2% [1].

Treatment for symptomatic flatfoot begins conservatively with shoe modification and supportive footwear and arch supports. However, these methods do not affect the course of flatfoot in children and have a limited evidence of correction of foot pronation. The traditional method for designing a flatfoot insert is based on the experience level of the orthotist using data that are nonweight bearing.

However, a biomechanical study showed a medial shift of the center of pressure (COP) trajectory [2], which is a kinetic gait based measure. In addition,...

References

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