Trauma review

• Trauma review

  Types of trauma:  Blunt, Sharp, Ballistic, Burning, Blast

  Speed of force:   Static (slow loading) or dynamic

  Focus of force:  Wide or narrow
• Trauma review

  Types of force:

  •Tension

  •Compression

  •Torsion

  •Bending

  •Shearing
• Types of fracture/discontinuity:

  •Fracture: Complete break

  •Infraction: Incomplete break

  •Displaced: Bone has moved, no longer meet

  •Greenstick: No movement

  •Hinge: Only part of the bone is broken, normally bent in.

  •Simple: 2 pieces

  •Comminuted: Multiple pieces

  •Fracture lines: Radiating and concentric
• What can trauma tell us?

  •When: Anti, Peri, Post Mortem?

  •What: What object caused the injury?

  •How many: How many blows there were?

  •Sequence: What order did they happen in?

  •Where: Where on the body did they occur?

  •How: How were they inflicted?

  •Who: Who were they inflicted by?

  •Why: Why were they inflicted?
• Blunt vs Sharp

  
• Blunt vs Sharp

  
• Blunt vs Sharp

  Blunt

  • Wide focus

  • Compression, bending, shearing

  • Discontinuities

  • Fracture lines, radiating and concentric

  • Often depressed

  Sharp

  • Narrow focus

  • Compression, shearing

  • Discontinuities

  • Puncture and cut marks

  • Few fracture lines