Complete Transection of the Superficial Femoral Artery from Blunt Trauma without Fracture: A Cautionary Tale

Vascular injuries to the superficial femoral artery (SFA) typically occur due to penetrating trauma or are associated with fractures. Complete transection of the SFA from blunt trauma in the absence of bone injury or skin penetration is exceedingly rare. A 67-year-old male presented 72 hours after blunt trauma from a vehicle collision with right lower limb ischemia. Imaging revealed a complete occlusion/block of the distal SFA without associated fracture. Emergency revascularization using a 7-mm polytetrafluoroethylene interposition graft, following fasciotomy, was successfully performed. This case underscores the importance of maintaining a high index of suspicion for arterial injury following blunt trauma, even in the absence of fractures. Timely imaging and surgical intervention are crucial to prevent limb-threatening complications. This case represents a rare but critical clinical entity, with very few cases of isolated blunt SFA transection without fracture documented in the literature.