Minimally invasive technique for stage III adult-acquired flatfoot deformity: a mid- to long-term retrospective study.

Purpose: The purpose of this study was to present the functional, radiological, and quality of life outcomes of a series of stage III adult-acquired flatfoot deformity corrections using an original operative approach based on minimal incision surgery (MIS).

Methods: Sixty-two patients (67 feet) with a symptomatic stage III flatfoot deformity were treated using a modified double arthrodesis by MIS. The mean age was 63 years (range, 50 to 81) and the mean follow-up was 6.