Tertiary Blast Injury
Definition
Blunt-force injury caused by physical displacement of the victim's body by the blast wind, followed by impact against surfaces. Morphologically identical to vehicle-collision or fall-from-height blunt trauma. Includes traumatic amputation from limb displacement at close proximity. Attribution requires contextual blast evidence.
- Cause
- Body displacement by blast wind, then impact
- Morphology
- Identical to blunt-force trauma from a fall or collision
- Distinctive feature
- Traumatic amputation at close range
- Attribution requirement
- Contextual blast evidence, not injury pattern alone
Common questions
How is tertiary blast injury told apart from a car crash injury?+
The wound pattern itself cannot distinguish them because both are blunt trauma from displacement and impact, so the pathologist relies on scene context, such as debris, seat or floor markings, and the presence of primary or secondary blast wounds on the same body.
Why is traumatic amputation a useful indicator?+
Amputation caused purely by blast wind displacement, without an associated fragment wound track, points toward close-range exposure to the blast itself rather than to a separate mechanical cause, helping reconstruct the victim's position relative to the device.
Related terms
- Blast Lung Injury
- Bilateral pulmonary contusion and alveolar tear from primary blast overpressure. The most lethal primary blast mechanism. Characterised at autopsy by bilateral 'butterfly'...
- Primary Blast Injury
- Injury caused directly by the overpressure (blast) wave. Preferentially affects gas-containing organs (lungs, tympanic membranes, bowel). Blast lung (alveolar haemorrhage, barotrauma) is...
- Quaternary Blast Injury
- All blast-related injury not in primary/secondary/tertiary classes: burns (flash fireball + secondary fire), crush (structural collapse), and inhalation injury (CO, HCN, particulate)....
- Secondary Blast Injury
- Penetrating injury from fragments: device casing metal, pre-formed projectiles (nails, bolts, BBs), or environmental debris accelerated by the blast wave. The most...
- STANAG 2920
- NATO Standardization Agreement 2920, defining the fragmentation injury threshold for ballistic protection standards. Relevant in blast forensic pathology for relating fragment mass...
- Tympanic Membrane Perforation (TMP)
- Rupture of the eardrum by blast overpressure, occurring at 35-103 kPa, well below the threshold for blast lung injury. The most sensitive...