ARRS 2022 Abstracts

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E1796. Civilian Firearm Extremity Injuries: Review and Update
Authors
  1. Kimia Kani; University of MD School of Medicine
  2. Jack Porrino; Yale School of Medicine
  3. Felix Chew; University of WA
Background
Firearm injuries are a silent but preventable epidemic in the United States. Extremities are commonly affected in gunshot injuries, and such injuries may be complex with concomitant osseous, soft-tissue, and neurovascular components. Accurate assessment of ballistic injuries is dependent on utilizing the principles of wound ballistics, accurate bullet count and ballistic trajectory analysis.

Educational Goals / Teaching Points
Review wound ballistics and imaging evaluation of extremity civilian firearm injuries in the adult population, with emphasis on ballistic trajectory analysis, specific ballistic fracture patterns, and diffuse, secondary soft-tissue ballistic injuries.

Key Anatomic/Physiologic Issues and Imaging Findings/Techniques
Key points of the exhibit include types of firearms; factors affecting the maximum wounding potential of projectiles; wound ballistics and mechanisms of injury; imaging algorithm in acute gunshot injuries of the extremities; ballistic fractures; ballistic vascular, neural, and soft-tissue injuries; and imaging features of MRI-conditionally safe projectiles.

Conclusion
Extremity gunshot injuries may be complex with concomitant osseous, soft-tissue, and neurovascular components. Accurate assessment of ballistic injuries is dependent on utilizing the principles of wound ballistics, accurate bullet count and ballistic trajectory analysis.