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Flail Chest and Thoracic Wall Trauma

Paradoxical chest wall movement from multiple rib fractures

Written by: Saygı Hospital Health Guide Editorial Board
Last updated:

This content has been compiled by the Saygı Hospital Health Guide Editorial Board and is periodically reviewed by a specialist physician.

References (5)

This content is for informational purposes only and does not constitute medical advice. You can book an appointment at our Acil Servis department. Book Appointment →

What is Flail Chest and Thoracic Wall Trauma?

Flail chest is defined as fractures of ≥3 consecutive ribs in ≥2 sites each, producing an unstable thoracic wall segment.

The flail segment moves inward during inspiration and outward during expiration—the hallmark paradoxical motion.

The underlying pulmonary contusion is the primary driver of hypoxia, not the chest wall instability.

It is associated with high-energy mechanisms: motor vehicle crashes, pedestrian-vehicle collisions, falls from height.

Mortality ranges from 10–35%, increasing with age, comorbidities, and associated injuries.

Modern management emphasizes early analgesia, pulmonary toilet, and surgical rib fixation in selected cases.

Symptoms

Visible paradoxical chest wall motion with respiration
Severe localized chest pain worsening with breathing or coughing
Tachypnea, accessory muscle use, hypoxia
Crepitus and palpable rib step-offs
Splinting and shallow breathing leading to atelectasis
Decreased breath sounds; hemothorax or pneumothorax may coexist

Risk Factors

High-speed motor vehicle collisions
Falls from height (>3 meters)
Pedestrian-vehicle accidents
Crush injuries (industrial accidents)
Advanced age and osteoporosis (reduced bone resilience)
Anticoagulant use increasing bleeding complications

When to See a Doctor?

If you experience any of the following symptoms, seek medical attention promptly:

  • Any blunt chest trauma with respiratory distress requires immediate evaluation.
  • Visible chest wall deformity or paradoxical motion is an emergency.
  • Worsening hypoxia or rising oxygen requirement after chest trauma should prompt CT and ICU consultation.
  • Persistent uncontrolled chest pain limiting deep breathing requires regional anesthesia consideration.
  • New-onset confusion or fatigue in trauma patients may herald respiratory failure.

Treatment Methods

01
Multimodal analgesia: IV opioids, ketamine, lidocaine infusion, NSAIDs.
02
Regional anesthesia: thoracic epidural, paravertebral block, erector spinae plane block.
03
Aggressive pulmonary toilet: incentive spirometry, chest physiotherapy, early mobilization.
04
Non-invasive ventilation (BiPAP) for selected patients without high aspiration risk.
05
Mechanical ventilation with lung-protective strategy for severe respiratory failure.
06
Surgical stabilization of rib fractures (SSRF) for severe flail or failed conservative management.
07
Tube thoracostomy for associated hemothorax or pneumothorax.
08
ICU monitoring with daily reassessment of weaning potential.

Which Department to Visit?

You can visit our Acil Servis department for these complaints. Our specialist physicians will create the most suitable treatment plan for you.

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Health Disclaimer: The information on this page is prepared for general informational purposes only. It does not replace medical diagnosis and treatment. Please consult your physician for your complaints. Saygı Hospital does not accept responsibility for actions taken based on the information on this page.