Jul 30, 2018

Residual forefoot supination after correcting the hindfoot in stage IIb adult-acquired flatfoot deformity can be addressed with a dorsal opening wedge medial cuneiform (Cotton) osteotomy. The amount of correction is generally judged clinically, and there currently are no preoperative guides that can predict the size of graft needed. The aim of this study was to evaluate the correlation between patient and operative factors and the correction achieved with the Cotton osteotomy.

Correction of longitudinal arch collapse, as measured by the CAA, was primarily influenced by the size of the graft used for the Cotton osteotomy in a linear fashion. The preoperative CAA may help surgeons titrate the proper amount of graft placed intraoperatively.

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