Perimortem Trauma
Five characteristics:
- Sharp edges (fragment edges & fracture lines
- Hinging - bone bent away from blow
- Formation of fracture lines
- Shape of broken ends - angled with jagged surfaces
- Sometimes staining from hematoma
Postmortem Trauma:
Though not related to death, it must be distinguished
Usually related to recovery & transport.
Postmortem Trauma Characteristics:
. Breaks rarely exhibit radiating fracture lines
. Tends to snap - no green stick or hinge fractures
. Long bones tend to break at right angles to long axis
. Color of break is different from other bone surfaces