RESUMO
OBJECTIVE: To evaluate the long termeffect of custom-molded foot orthoses on foot pain and balance ability in children with symptomatic flexible flat feet after 1 year.METHOD: A total of 35 children over 6 year-old with flexible flat feet and foot pain for at least 6 months were recruited. Individual custom-molded rigid foot orthoses fabricated with the inverted orthotic technique was prescribed. Pain related parameters (pain sites, degree, and frequency) were obtained through questionnaires. Pain assessment was performed prior to application of the foot orthoses, and 1, 3, 6, 12 months after applying the orthoses. Balance ability was tested by computerized posturography. Such measures were evaluated prior to, 3 months, and 12 months after applying the foot orthoses. Additionally, the difference inbalance ability between barefoot and withfoot orthosesat 12 months was assessed to estimate carryover effect.RESULTS: 17 out of 35 children completed the study. Significant improvements were noted upto 12 months in pain parameters and balance ability. The carry over effect of the orthoses was confirmed.CONCLUSION: There were significant improvements offoot pain and balance ability in children with symptomatic flexible flat foot after wearing foot orthoses fabricated with the inverted orthotic technique over 1year period.