Subclavian artery injury following clavicle fracture successfully treated with an urgent conversion to endovascular method: a case report

Subclavian artery injury is a rare complication of clavicular fracture. This condition most often results from penetrating trauma but may also occur after blunt injury, when bone fragments cause rupture, pseudoaneurysm, dissection, or arterial thrombosis. Subclavian artery injury associated with clavicular fracture occurs in less than 1% of cases and may lead to life-threatening hemorrhage or limb ischemia. We report a case of subclavian artery injury secondary to a clavicular fracture that was successfully managed with endovascular intervention. A 48-year-old man presented to the emergency department after a downhill bicycle crash with a right midshaft clavicle fracture and was scheduled for open reduction and internal fixation (ORIF) 11 days later. Intraoperatively, rupture of a subclavian artery pseudoaneurysm caused massive hemorrhage. Surgical dissection was complicated by severe perivascular inflammation and a high risk of iatrogenic subclavian vein injury. Immediate conversion to an endovascular approach allowed successful hemostasis through femoral artery access and covered stent deployment, after which ORIF was completed. The patient recovered without neurovascular complications and was discharged on postoperative day 5. At 12 weeks, he achieved full shoulder range of motion, and 2-year follow-up angiography showed no stent-related complications. This case underscores the effectiveness of emergent endovascular intervention for ruptured traumatic subclavian pseudoaneurysm when inflammation and risk of iatrogenic injury preclude safe open dissection. A hybrid or rescue endovascular strategy should be considered for similar complex trauma cases.