Fractures
Also known as: Broken bone, Fracture

Disruption of bone cortical continuity from trauma (direct or indirect force), repetitive stress (stress fracture), or bone weakened by underlying pathology (pathological fracture — malignancy, osteoporosis, osteomyelitis).
Classified by:
- Pattern: transverse, oblique, spiral (rotational force — consider non-accidental injury in children if inconsistent with history), comminuted, greenstick (incomplete, pediatric), avulsion
- Skin integrity: closed vs. open (Gustilo-Anderson classification for open fractures: I minimal soft tissue damage <1cm wound, II 1-10cm wound moderate contamination, IIIA/B/C increasing soft tissue loss/contamination/vascular injury)
- Displacement: undisplaced, displaced, angulated, rotated
- Stability: stable vs. unstable (risk of further displacement)


