Medial column procedures in the acquired flatfoot deformity.

This article focuses on the medial column procedures for the treatment of the acquired flatfoot. When performing a medial column procedure alone, in combination with soft tissue reconstruction, or with concomitant lateral bony procedure, the deformity being addressed should include significant abduction or collapse through the talonavicular (TN), naviculocuneiform (NC), or tarsometatarsal (TMT) joints. The procedures covered in this article include arthrodesis of the TN, NC, and metatarsocuneiform (MTC) joints, together or in isloation. Osteotomies of the cuneiforms will also be addressed.