book notes - Colles Fracture- fall from skateboard onto...

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Colles Fracture- fall from skateboard onto hand Boxers fracture- fourth of fifth metacarpal when you hit something with a closed fist Bone trauma- - Antemortem, postmortem, perimortem - Based on only skeletal analysis without tissue you cannot determine if the person was alive when murder occurred - If the saw marks were uniform and neat no struggle took place- assume at least unconscious - Antemortem Trauma- o Injury that occurred during life and has healed or is healing when time of death o 5 phases of bone repair Hematoma occurs Osteoblastic cells form new bone that bridges gap on new fracture Osteoblasts lay down a woven new bone “callus” Callus is transformed into lamilar bone with strengthens stressed area 4-6 weeks is approx. length for long bone to reach remodeling phase If bone has completely healed you CAN’T determine how long ago fracture occurred Healing - Perimortem o Injury occurring around time of death o Could have contributed to death o Shows No evidence of healing o Occurs as a result of 3 mechanisms Blunt forces Cause when blunt object strikes body Cranium is most significant site of homicide case injuries o Fracture emanate from point of impact and radiate outward o Path of least resistance o
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This note was uploaded on 12/06/2011 for the course ANT 3520 taught by Professor K during the Fall '10 term at University of Florida.

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book notes - Colles Fracture- fall from skateboard onto...

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