Outcomes of Talus Fractures Associated With High-Energy Combat Trauma

Abstract

Background: Talus fractures are infrequent injuries that are often associated with poor clinical outcomes. Literature reviewing talus fractures is limited to a civilian population, with few studies characterizing these injuries sustained in active duty personnel. The aim of this study was to characterize talus fractures sustained in combat trauma by reporting their surgical outcomes.

Methods: The Department of Defense Trauma Registry (DoDTR) was queried to identify US service members who sustained talus fractures in battle conditions between 2001 and 2014. These patients underwent a retrospective chart review. Injury and fracture patterns were characterized. We examined the incidence of secondary surgical procedures and reviewed patients undergoing early and late transtibial amputations. Forty-eight talus fractures were identified.

Results: All injuries were related to high-energy trauma: 43 (90%) resulting from improvised explosive devices (IED), 3 (6%) from gunshot wounds (GSW), and 2 (4%) from propelled explosive devices. Ten (20.8%) patients underwent early transtibial amputation. Early amputations were associated with calcaneus fractures (10/10 vs 16/38, P = .0009) but not with open fractures (8/10 vs 20/38, P = .163). Twenty-six fractures were available with longer term follow-up. Twenty-three fractures had associated injuries to the ipsilateral lower extremity. Sixteen (61.54%) injuries underwent a total of 26 additional surgical procedures. Eight fractures required secondary fusions (30.8%). Subtalar fusions were associated with ipsilateral calcaneus fractures (5/6 vs 2/10, P = .03). One patient underwent a delayed transtibial amputation 17 months after injury.

Conclusions: Talus fractures sustained within the combat environment were associated with high rates of early amputations and secondary surgical intervention. When the limb was salvaged, patients could expect the need for additional procedures to address ongoing issues.

Level of evidence: Level IV, case series.

Keywords: amputation; combat; military; outcome studies; talus.