Radiographic and Clinical Outcomes of Intermetatarsal Screw Fixation in First Tarsometatarsal Arthrodesis for Hallux Valgus

Background: First tarsometatarsal (TMT) arthrodesis is a surgical option for moderate to severe hallux valgus, particularly in the setting of first-ray instability. The use of a supplemental intermetatarsal screw (IMS) has emerged as a technique intended to enhance transverse plane stability and may help maintain correction; however, limited clinical data exist regarding its radiographic and complication profile. This study compared radiographic correction, maintenance of alignment, and postoperative complications following TMT arthrodesis with vs without IMS fixation. Methods: A retrospective review was performed of adult patients who underwent first TMT arthrodesis for hallux valgus from 2013 to 2023 at a tertiary academic center. Patients undergoing additional midfoot fusion or with .05). Conclusion: Supplemental IMS fixation in first tarsometatarsal arthrodesis for hallux valgus was associated with greater maintenance of radiographic correction without observed differences in complication rates. These findings support IMS augmentation as a potential adjunct in appropriately selected patients. Level of Evidence: Level III, retrospective review.