Costochondritis: Diagnosis and Treatment
Diagnosis
Costochondritis is diagnosed clinically by finding reproducible chest wall pain with palpation over the costochondral or costosternal junctions, typically affecting the third through seventh ribs. 1
Clinical Examination
- Palpate the costochondral junctions and costosternal joints—tenderness that reproduces the patient's pain confirms the diagnosis 1
- The pain is typically localized, sharp, and worsens with movement or deep breathing 1
- In children, adolescents, and young adults with typical presentation, history and physical examination alone are sufficient for diagnosis 1
When to Pursue Additional Testing
- Patients over 35 years old require an electrocardiogram and possibly chest radiograph to exclude cardiac causes, as coronary artery disease is present in 3-6% of adults with chest wall tenderness 1
- Any patient with cardiovascular risk factors or cardiopulmonary symptoms needs cardiac workup before accepting the diagnosis of costochondritis 1
- If fever, purulent drainage, or systemic signs are present, consider infectious costochondritis and obtain imaging (CT/MRI) and cultures 2
Treatment Algorithm
First-Line Pharmacological Treatment
Start with NSAIDs at maximum tolerated and approved dosage, evaluating response after 2-4 weeks. 3
- Use oral NSAIDs at the lowest effective dose for the shortest duration to minimize risks 3
- Consider topical NSAIDs to reduce systemic side effects 3
- For patients with increased gastrointestinal risk, use either non-selective NSAIDs plus a gastroprotective agent, or a selective COX-2 inhibitor 3
- Monitor for gastrointestinal, hepatic, and cardiorenal toxicity, particularly in elderly patients and those with comorbidities 3
Adjunctive and Alternative Pharmacological Options
- Add acetaminophen (paracetamol) at regular dosing intervals as an alternative or adjunct when NSAIDs are insufficient, contraindicated, or poorly tolerated 3
- For persistent focal pain after 2-4 weeks of NSAIDs, consider local corticosteroid injections directed to the site of inflammation 3
- Short courses of oral prednisolone may be used as bridging therapy while awaiting effect of other agents, but avoid long-term systemic corticosteroids due to adverse effects and lack of evidence 3
Non-Pharmacological Interventions
Physical therapy with stretching exercises provides significant pain reduction and should be incorporated early in treatment. 4
- Stretching exercises targeting the chest wall show progressive significant improvement compared to standard care alone (p<0.001) 4
- Manual therapy directed at the cervicothoracic spine and ribcage, combined with therapeutic exercise, facilitates resolution of symptoms 5
- Rib manipulation and soft tissue mobilization techniques can be effective, particularly for atypical or prolonged cases 6
- Apply local heat or cold applications to the affected area 3
- Provide patient education about the benign, self-limiting nature of the condition 3
Treatment Progression
If inadequate response after 2-4 weeks:
- Switch to a different NSAID or add acetaminophen 3
- Initiate or intensify physical therapy with manual techniques and stretching 4, 5
- For focal areas of persistent tenderness, proceed with local corticosteroid injection 3
Important Caveats
- Costochondritis is typically self-limiting, resolving within several weeks, but can persist for months 4, 1
- Always exclude cardiac causes before finalizing the diagnosis, especially in older adults 1
- Infectious costochondritis requires entirely different management with antibiotics and possible surgical debridement—suspect this if there are systemic signs, fever, or purulent drainage 2
- Reassurance about the benign nature is therapeutic, as patients often fear cardiac disease 1