Double arthrodesis in the adult

Twenty-four double arthrodeses (24 patients) mere evaluated at an average o f 56 months postoperatively. Sixteen arthrodeses were performed for adult a cquired flatfoot attributable to posterior tibial tendon insufficiency (16 patients), and results were compared with the results of eight patients und ergoing arthrodesis for other diagnoses. The overall satisfaction rate was 83%, with 76% of patients having good and excellent results. Considerable i mprovements were observed in pain and function indices, with similar outcom es observed in the patients with and without acquired flatfoot. However, co mplications were more frequent in the patients who had flatfoot deformities . Clinical deformity was corrected reliably and radiographic parameters con firmed correction of deformity. Progression of arthrosis in the surrounding joints was common, but most patients were asymptomatic, Talonavicular nonu nion was the most frequent complication, occurring in four patients. Three of the patients underwent revision arthrodesis.