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Trauma Analysis.docx

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ANT 3520
Katie Rubin

Trauma Analysis • Antemortem fractures (alive) – Healing • Perimortem fractures (death) – Green stick • Postmortem fractures (after death) – Staining • Trauma – Serious shock or injury to the body form violence or accident • Blunt force trauma – “non penetrating” injuries resulting from an impact with a dull, firm surface or object o Characterized by discontinuities and fracture lines • Types of fractures : o Comminuted – Massive break, multiple fragments, hard to heal o Greenstick – bent a little o Hairline fracture/incomplete – hard to see on xray, could become worse o Oblique – not a straight break o Spiral – bone is torqued o Simple/ transverse – easy to fix o Impacted – head goes down into bone, can get bone necrosis o Compression – found in vertebrae, seen in elderly and athletes, no good way to treat it • Implement (cause) of blunt force trauma sometimes difficult to tell o Baseball bat o Rock o Metal Objects o Parts of cars in automobile crash o Glass Bottle • Fractures usually emanate from point of impact – this is nice o Exceptions:  Ribs  Compression – point of tension • Fractures take path of least resistance o Diastatic fractures  When fracture goes down suture line o Weak portion of bone • Plastic deformation o Bone is deformed from slow forces of blow • Falls – Wrist o Colles/Smith Fracture  To the distal radius  Mechanism • Colles – fall on an extended outstretched hand with straight elbow o Dorsal displacement • Smith – fall on a flexed hand o Volar displacement o Salter I or II fracture (3,4,5 are bad)  Break between epiphysis and metaphysis o Falls – arms  Monteggia fracture • Ulna with radius displaced at the elbow o Fall on pronated outstretched hand with straight elbow o AKA night stick injury  Galeazzi fracture • Radius with ulna displaced at the wrist o Fall on pronated outstretched hand with bent elbow  GR UM o Falls – ankle  Weber fracture • Inversion or eversion of ankle • ABC fractures  Potts fracture • Bimalleolar fracture • Very unstable • A+B, A+C,… o Falls from height  Ring fracture (feet first) • At base of cranium • Spinal column drives up into skull  Jefferson fracture • Fracture of C1  Axial load fractures • Spine, femur foot o Defensive wounds  Parry fracture • Ulna o Monteggia fracture by force to posterior ulna • Defensive wounds of the hands t
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