Rib Injuries and Complications
Diagnostic Imaging
- The American College of Radiology suggests that ultrasound may detect rib fractures missed by conventional radiography and CT in some cases 1
- A standard posteroanterior (PA) chest radiograph is recommended as the first diagnostic test for detection of rib fractures following CPR, despite potentially missing up to 50% of rib fractures, as failure to detect all fractures does not necessarily alter patient management in uncomplicated cases, according to the American College of Radiology 2
- Chest radiography is valuable for detecting complications such as pneumothorax, hemothorax, and flail chest, which may be more clinically significant than the rib fractures themselves 2
- CT is more sensitive for detecting rib fractures after CPR and may identify complications not visible on radiographs, detecting rib fractures in 65% of CPR survivors compared to 25% with chest radiography, as recommended by the American College of Radiology 2
- The following table summarizes the RibScore variables used to predict adverse pulmonary outcomes:
| Variable | Description |
|---|---|
| 1 | ≥6 rib fractures |
| 2 | Bilateral fractures |
| 3 | Flail chest |
| 4 | ≥3 severely displaced fractures |
| 5 | First rib fracture |
| 6 | At least 1 fracture in all 3 anatomic areas (anterior, lateral, posterior) |
Management of Rib Fractures
- Rigid immobilization is preferred over removable splints for rib fractures, according to the American Academy of Orthopaedic Surgeons 3
- Consider surgical fixation for rib fractures with postreduction radial shortening >3 mm, dorsal tilt >10°, or intra-articular displacement, as recommended by the American Academy of Orthopaedic Surgeons 3
- Surgical stabilization may be considered for rib fractures when they are significantly displaced, causing damage to blood vessels or nerves, or fractured in an anterior or anterolateral location, as recommended by the World Journal of Emergency Surgery and the American College of Surgeons and the Eastern Association for the Surgery of Trauma 4
- Ribs 3-8 may be considered for surgical stabilization as part of the commonly plated ribs, with the decision based on displacement and impact on respiratory mechanics, as suggested by the World Journal of Emergency Surgery and the American College of Surgeons and the Eastern Association for the Surgery of Trauma 4
Pain Management
- Regular administration of intravenous acetaminophen (1 gram every 6 hours) is strongly recommended as first-line treatment by the World Journal of Emergency Surgery, providing effective pain relief with minimal side effects 5, 6
- Acetaminophen should be dose-adjusted according to age and renal function, as recommended by the World Journal of Emergency Surgery 6
- Opioids should be used cautiously, especially in elderly patients, due to risks of respiratory depression, sedation, and delirium, and only for breakthrough pain, at the lowest effective dose for the shortest period, as recommended by the World Journal of Emergency Surgery 5, 7
- Consider adding NSAIDs with caution, accounting for potential adverse events and drug interactions in elderly patients, if pain persists or worsens 5
- Ketamine (0.3 mg/kg over 15 minutes) may be considered as an alternative to opioids, with fewer cardiovascular side effects, as suggested by the World Journal of Emergency Surgery 5
- The following table summarizes regional anesthesia techniques:
| Technique | Description | Benefits |
|---|---|---|
| Thoracic Epidural (TE) | Injection of local anesthetic into the epidural space | Reduces opioid consumption, decreases delirium in older patients |
| Paravertebral Blocks (PVB) | Injection of local anesthetic into the paravertebral space | Reduces opioid consumption, decreases delirium in older patients |
| Erector Spinae Plane Blocks (ESPB) | Injection of local anesthetic into the erector spinae plane | Reduces opioid consumption, decreases delirium in older patients, with fewer side effects |
| Serratus Anterior Plane Blocks (SAPB) | Injection of local anesthetic into the serratus anterior plane | Reduces opioid consumption, decreases delirium in older patients, with fewer side effects |
Monitoring and Follow-up
- Patients with rib fractures should be monitored for complications such as pneumothorax, hemothorax, pulmonary contusion, pneumonia, respiratory failure, and vascular injuries, especially with first rib fractures, as recommended by the American College of Radiology 2
- Abdominal organ injuries should be evaluated, especially with lower rib fractures, as suggested by the American College of Radiology 2
- Patients who have undergone surgical stabilization should have initial follow-up within 1-2 weeks of discharge, and all patients should have follow-up in clinic within 2-3 weeks after hospital discharge to evaluate pain control, respiratory function, functional status, and need for additional imaging, as suggested by the World Journal of Emergency Surgery 4
- High-risk factors requiring more aggressive management include age >60 years, ≥3 rib fractures, flail chest, underlying respiratory disease, significant respiratory compromise, and poor functional respiratory status, as suggested by the World Journal of Emergency Surgery 4
- Patients with rib fractures should be admitted to the ICU if they have any of the following: ≥3 rib fractures in elderly patients (>60 years), flail chest, significant respiratory compromise, or poor functional respiratory status (FVC <50% predicted), as suggested by the World Journal of Emergency Surgery 4
- The American Thoracic Society recommends considering non-invasive ventilation (NIV) for chest trauma patients with acute respiratory failure, as it has been shown to decrease mortality, reduce the need for intubation, and lower the incidence of nosocomial pneumonia 4, 8