Rib Pain Radiating from Back to Front of Chest
Start with chest radiography after clinical assessment to rule out serious causes like fracture, pneumothorax, or malignancy, then focus on musculoskeletal etiologies including costochondritis, slipping rib syndrome, or intercostal nerve impingement if imaging is unremarkable. 1, 2
Immediate Clinical Assessment
First, exclude life-threatening conditions by evaluating for red flags that require immediate hospital transfer: 3
- Pain interrupting normal activity with cold sweats, nausea, vomiting, or fainting 3
- Severe, prolonged chest pain of acute onset 3
- If red flags present: place on cardiac monitor, obtain ECG within 10 minutes, and call ambulance 3
If no red flags, assess pain characteristics to differentiate cardiac from musculoskeletal causes: 2
- Musculoskeletal indicators: pain varies with respiration, body position, well-localized on chest wall, reproducible with palpation, or affected by turning/twisting 2
- Concerning features: pain unaffected by movement or palpation suggests non-musculoskeletal etiology 2
Diagnostic Imaging Algorithm
Initial imaging - Chest Radiography (PA view): 1, 2
- This is the recommended first-line test to evaluate for fractures, infection, neoplasm, pneumothorax, or hemothorax 1, 2
- Be aware that standard chest X-rays miss up to 50% of rib fractures, but this rarely changes management in uncomplicated cases 1, 2
- Place radio-opaque skin markers on the site of maximal pain to help radiologists localize abnormalities 2
Secondary imaging if chest X-ray is negative but clinical suspicion remains: 2
- Dedicated rib series: helpful for focal chest wall pain to assess for rib fractures or lesions 2
- Point-of-care ultrasound: detects 29% of rib fractures missed on chest radiography 2
- Dynamic ultrasound: specifically for suspected slipping rib syndrome (89% sensitivity, 100% specificity) 2
- Evaluation of concurrent pulmonary disease 1, 2
- Known or suspected malignancy after normal chest radiograph 2
- High clinical suspicion requiring detailed characterization 1
Common Causes of Back-to-Front Rib Pain
Costochondritis (most common - 42% of nontraumatic chest wall pain): 1
- Diagnosed primarily by physical examination without imaging 1
- Anterior chest wall tenderness at costochondral junctions 1
Slipping Rib Syndrome (hypermobility of ribs 8-12): 2, 4
- Pain in lower chest/upper abdomen, sharp, worsens with specific movements 4
- Perform hooking maneuver: hook fingers under costal margin and pull anteriorly to reproduce pain 2, 4
- Ribs 8-12 are not connected to sternum, only attached to each other with ligaments 4
- 10th rib most commonly affected 4
Cough-induced rib fractures: 2
Intercostal nerve impingement: 5
- Can occur from rib deformity, previous trauma, or compression fractures 5
- Pain radiates along intercostal distribution from back to front 5
Myofascial pain syndrome/painful rib syndrome: 6, 7
- Tender trigger points on costal margin 6
- Pain reproduced by pressing trigger point 6
- Often bilateral, lower chest and upper abdomen distribution 8
Treatment Algorithm
First-line analgesic management: 2
- Regular acetaminophen as primary treatment 2
- NSAIDs as second-line for severe pain (consider GI/renal risks) 2
- Low-dose ketamine (0.3 mg/kg over 15 minutes) as opioid alternative for severe pain 2
Non-pharmacological measures: 2
- Immobilization, cold compresses in conjunction with medications 2
- Avoid postures that worsen pain 4
- Manual therapy and exercises for myofascial causes 7
Interventional options for refractory cases: 2, 5
- Ultrasound-guided intercostal nerve blocks with local anesthetic and corticosteroids 5
- Deep analgesic infiltration at tender points 8
- Trigger point injections for myofascial pain 6, 7
- Surgical fixation for unstable chest wall (flail chest) 2
- Rib resection for refractory slipping rib syndrome 4
- Consider for severe refractory pain or chest wall deformity 2
Critical Pitfalls to Avoid
- Do not rely solely on chest radiographs - they miss 50% of rib fractures, but use clinical judgment as this rarely changes management 1, 2
- Do not dismiss pain as "not real" - explain the benign nature while validating that pain is real and manageable 6
- Do not delay cardiac workup if red flags present - pain severity is a poor predictor of cardiac complications 3
- Do not forget to check for malignancy in patients with risk factors - bone scintigraphy has 95% sensitivity for skeletal metastases 2