ANTHROP 3FA3 Lecture Notes - Lecture 21: Hematoma, Collagen, Fracture Mechanics
26 Apr 2019
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Fracture repair (healing: trauma occurs, hematoma soft cells hard callus remodeling. Post mortem trauma: mostly taphonomic, bones broke after decomposition (in the grave, excavation, by scavengers, differently coloured edges, jagged, right angled edges, brittle (little collagen left) Fracture mechanics: the study of how bone breaks when force is applied, amount (magnitude) & duration of stress > than the bones ability to resist strain => fracture (youngs modulus) 2: open compound: skin broken by bone fragment, closed: skin not broken, incomplete: bone does not break all the way through, complete: cortical bone continuity entirely interrupted. Incomplete fractures: more common in children (greenstick, normal in childhood, but may also suggest child abuse, in adults, can also be caused by stress, repetitive impacts (e. g. marching, running) Complete fractures: cortical bone continuity fully severed. Transverse fractures: tension or bending forces, bone will bend and fail (snap, breaks in horizontal line.
