Importance of postoperative sesamoid reduction on the outcomes of proximal chevron osteotomy for moderate to severe hallux valgus deformity

Background: The purpose of this study was to compare the clinical and radiographic outcomes between feet with or without postoperative sesamoid reduction of proximal metatarsal chevron osteotomy for moderate to severe hallux valgus deformity. Methods: All of 110 feet were allocated into two groups (reduction group; 66 feet, non-reduction group; 44 feet) according to the reduction status of sesamoid at 6 months after surgery. The clinical and radiographic results of the two groups were compared preoperatively, 6 months follow-up, and at last follow-up. Results: The overall improvement in clinical outcomes was similar in both groups at average 4-year follow-up. However, the radiographic outcomes and recurrence rate were significantly worse in the sesamoid non-reduction group. Conclusions: Our results suggested that postoperative incomplete reduction of sesamoid may increase a risk for the recurrence of hallux valgus deformity. (C) 2018 European Foot and Ankle Society. Published by Elsevier Ltd. All rights reserved.