Subtalar and Naviculocuneiform Fusion in Treating Adult Acquired Flatfoot Deformity with Medial Arch Collapse at the Level of the Naviculocuneiform Joint: A Radiographic Analysis

摘要

Category:Midfoot/ForefootIntroduction/Purpose:A conflicting problem in treating acquired flatfoot deformities is the break-down of the arch at the naviculocuneiform (NC) joints. After having encountered problems with extended triple fusion, in particular increased stiffness of the foot, we established a rational to combine subtalar (ST) fusion with NC I-III fusion while preserving the talonavicular (TN) and calcaneo-cuboidal (CC) joint. Our hypothesis was that the break-down of the arch at the NC joint can be specifically addressed while sparing the Chopart Joint (TN and CC joint). This, in turn, will allow the patient to accommodate better to the ground while walking.The aim of the study was to analyze the radiographic correction and fusion rate, and to determine patient’s satisfaction with this procedure.Methods:Between 2009 and 2015, a consecutive series of 34 feet in 31 patients (female, 23; male, 8; age 67 [45-81] years) were treated by combining a fusion of the subtalar joint with a NC fusion. Both ...