Radiographic characteristics and outcomes of simple resection for naviculo-medial cuneiform coalition in adults.

Abstract Background This study aimed to report the outcomes of coalition resection in adults with naviculo-medial cuneiform (NC) coalition. Methods Seventeen adults (20 feet) who underwent NC coalition resection were identified. The location and morphology of coalitions and five angular parameters, including medial arch sag angle (MASA), were assessed on weightbearing radiographs. Pre- and postoperative visual analogue scale and foot function index were evaluated for clinical outcomes. Results Most feet (19 out of 20) had a coalition at the plantar-medial aspect, and there was no radiographic evidence of residual NC joint space compromise. There was no radiographic evidence of medial arch sag (MASA, p = 0.749) or recurrence at the final follow-up (21.7 months, range 12 to 48). Clinical scores improved significantly in all patients. Conclusions Resection of NC coalition in adults can be successful and provides an option to arthrodesis when conservative treatments have failed.