Flail chest

Background

• Due to segmental fxs (in 2 or more locations on same rib) of 3 or more adjacent ribs
  • Leads to free-floating segment of ribs that no longer attach to rest of thorax
• Commonly associated w/ respiratory failure (due to pulmonary contusion)

Diagnosis

• Paradoxical inward movement of involved portion during inspiration

Differential Diagnosis

Thoracic Trauma

• Airway/Pulmonary
  • Bronchial injury
  • Diaphragmatic trauma
  • Hemothorax
  • Pneumomediastinum
  • Pulmonary contusion
  • Tracheal injury
  • Trachobronchial injury
  • Traumatic pneumothorax
    • Tension pneumothorax
• Cardiac/Vascular
  • Cardiac injury
    • Blunt cardiac injury
      • Cardiac contusion
      • Commotio cordis
    • Penetrating cardiac injury
    • Cardiac tamponade
  • Traumatic aortic transection
• Musculoskeletal
  • Clavicle fracture
    • Clavicle fracture (peds)
  • Rib fracture
    • Flail chest
  • Scapular fracture
  • Scapulothoracic dissociation
  • Sternoclavicular dislocation
  • Sternum fracture
  • Thoracic and lumbar fractures and dislocations
• Other
  • Esophageal injury or Perforation
  • Pneumomediastinum
  • Pneumopericardium
  • Traumatic asphyxia

Treatment

• Pts w/ mild-moderate flail chest who are otherwise healthy may be managed w/o PPV
• Analgesia
• Consider intubation even if pt's breathing initially seems adequate, esp if:
  • Shock
  • Severe head injury
  • Comorbid pulmonary disease
  • Fx of 8 or more ribs
  • Age >65
• Surgical fixation is controversial

See Also

• Thoracic Trauma
• Traumatic Pneumothorax
• Spontaneous Pneumothorax
• Tension Pneumothorax