Grade | Injury type | Description of injury |
I | Contusion | Any size |
Laceration | Skin and subcutaneous | |
Fracture | <3 ribs, closed; nondisplaced clavicle closed | |
II | Laceration | Skin, subcutaneous and muscle |
Fracture | ≥3 adjacent ribs, closed | |
Open or displaced clavicle | ||
Nondisplaced sternum, closed | ||
Scapular body, open or closed | ||
III | Laceration | Full thickness including pleural penetration |
Fracture | Open or displaced sternum | |
Flail sternum | ||
Unilateral flail segment (<3 ribs) | ||
Laceration | Avulsion of chest wall tissues with underlying rib fractures | |
Unilateral flail chest (≥3 ribs) | ||
Fracture | Bilateral flail chest (≥3 ribs on both sides) | |
V | Fracture |