Pediatric pes planus (flatfoot) is a common foot condition caused by loss of the medial longitudinal arch. There may be associated with anatomical abnormalities such as valgus position of the hindfoot, an internal rotation of the talus and medial talar prominence. The incidence among children with flatfoot varies from 2.8% to 24.2% [1]. If nonsurgical interventions have failed to address deformities surgical treatments will be indicated [2] and arthroereisis is the preferred method [3].

Despite the fact that arthroereisis limits talocalcaneal joint motion with an implant in the sinus tarsi, it has proven to be effective in reducing pain. The implant neutralizes the abnormal pronation associated with pes planus. Numerous studies have shown the effectiveness of these implants [2–4]. However, there are still many cases of inadequate results from the including: prosthesis migration, continued severe postoperative pain, failure to reform the medial...

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