Transportation Injuries

Transportation Injuries - Street Smarts

• Road Traffic Accidents (RTAs): Most common; involve vehicles, occupants, pedestrians.
  • Vulnerable Road Users (VRUs): Pedestrians, cyclists, two-wheeler riders.
• Impact Sequence (RTAs):
  • Primary: Vehicle strikes individual.
  • Secondary: Individual strikes vehicle components.
  • Tertiary: Individual strikes ground/external objects.
• Injury Classification Systems:
  • Abbreviated Injury Scale (AIS): Time-independent severity assessment of individual injuries.
  • AO Classification: Specific system for fractures and dislocations in RTAs.
• Pedestrian Injuries:
  • Bumper Fractures: Tibia/fibula (adults); Femur (children). Often transverse/oblique.
  • 📌 Waddell's Triad (children): 1. Ipsilateral fractured femur; 2. Ipsilateral intra-thoracic/abdominal injuries; 3. Contralateral head injury.
  • Head & neck injuries: Common from windscreen/ground impact.
• Modern Documentation: CT, MRI, 3D reconstruction provide detailed anatomical information and injury mechanism analysis in complex RTA cases.

⭐ Dicing injuries (multiple small, cuboidal, relatively blunt-edged glass fragments) are characteristic of shattered tempered glass (side/rear car windows).

Transportation Injuries - Inside Ride

• Car Occupants:
  • Driver: Steering wheel impact (cardiac, aortic rupture), dashboard knee (PCL injury, hip dislocation), whiplash.
  • Front Passenger: Windshield impact (head/face if unbelted), dashboard injuries.
  • Rear Passenger: Whiplash, impact with front seats/B-pillar.
  • Blunt force trauma, particularly head injuries, is the leading cause of death for motor vehicle occupants.
• Safety Devices & Associated Injuries:
  • Seatbelts: "Seatbelt sign" (bruising over chest/abdomen), clavicle/sternal fractures, mesenteric/bowel injuries.
  • Airbags: Facial abrasions, chemical burns, upper limb fractures.
• Two-Wheeler Riders (Motorcycle/Scooter):
  • Head injury: Most common cause of death. Additionally, thoracic and abdominal injuries (lungs, heart, liver, spleen) are significant causes of fatality.
  • Lower limb fractures (femur, tibia).
  • Handlebar injury: Abdominal (pancreas, spleen, duodenum) / pelvic trauma.

⭐ Dicing injuries, characterized by multiple small, angular, or cubical skin cuts, are typically caused by shattered tempered glass (side/rear car windows).

Transportation Injuries - Track & Sky Trauma

• Railway Injuries (Track Trauma)

  • Mechanisms: Run-over, struck by train, falls.
  • Run-over: Crushing, decapitation, traumatic amputations, "ironing effect".
  • Struck by train: Multiple fractures, severe internal injuries.
  • Suicidal vs. Accidental differentiation is key.

  ⭐ "Décollement" (degloving) of scalp/limbs is characteristic in run-over injuries.

  • 

• Aviation Injuries (Sky Trauma)

  • Causes: High-velocity impact, deceleration, burns, environmental factors.
  • Impact: Extreme body fragmentation ("human jigsaw puzzle").
  • Deceleration: Aortic rupture, visceral lacerations (liver, spleen).
  • Burns: Often severe, fuel-related.
  • Identification: Challenging; uses dental, DNA, fingerprints.
  • Patterned injuries from seatbelts/aircraft parts.

Transportation Injuries - Law & Order Roads

• Medico-Legal Case (MLC) registration mandatory for all RTA victims.
• Inform police: Accidental Reporting (AR) intimation.
• Documentation: Detailed injury report, time of arrival, alleged history.
• Preserve evidence: Clothing, foreign bodies, samples (blood, urine for alcohol/drugs).
• Consent: For examination & procedures; implied in emergencies.
• Dying declaration: If patient anticipates death, inform magistrate.

⭐ Section 106 BNS (Causing death by negligence) is commonly invoked in fatal RTAs.

• Victim identification: Crucial in unknown persons brought in dead (BID).

High‑Yield Points - ⚡ Biggest Takeaways

• Primary impact: direct vehicle contact; Secondary impact: victim strikes ground/objects.
• Dicing injuries: small, angular cuts from shattered tempered glass (side/rear windows).
• Bumper fractures (tibia/fibula) in pedestrians indicate impact height.
• Whiplash injury: cervical spine hyperextension-hyperflexion, common in rear-end collisions.
• Patterned injuries (tyre marks, grille imprints) can link to the specific vehicle.
• Head injuries are the most common cause of death in RTAs.
• Avulsion injuries and internal organ rupture (liver, spleen) are significant.