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Updated: May 21, 2026

Posterior Approach for Debridement of the Psoas Abscess
Published on: March 2, 2020
[Primary psoas abscesses of the psoas muscle in children]
Youssef Gharbi1, Mohamed Cherif, Tahar Gargah
1Hopital Habib Thameur, Tunis, Tunisie.
Insights
Ultrasonography is a highly effective diagnostic and treatment tool for pediatric psoas abscesses. This imaging method aids in diagnosis and minimally invasive drainage, reducing the need for surgery.
Area of Science:
- Pediatric infectious diseases
- Diagnostic imaging in children
- Minimally invasive procedures
Background:
- Primary psoas abscesses are uncommon in children, presenting diagnostic and therapeutic challenges.
- Early and accurate diagnosis is crucial for effective management.
Purpose of the Study:
- To establish ultrasonography as a primary diagnostic and therapeutic modality for pediatric psoas abscess.
- To minimize reliance on more invasive and resource-intensive methods like CT scans and open surgery.
Main Methods:
- Retrospective analysis of 16 pediatric patients diagnosed with psoas abscess over 15 years.
- Diagnosis primarily utilized ultrasonography, supplemented by clinical evaluation.
- Ultrasound-guided percutaneous drainage was performed in most cases.
Main Results:
- Ultrasonography successfully diagnosed all 16 cases of psoas abscess.
- Ultrasound-guided drainage was effective in 12 out of 14 patients.
- Staphylococcus Aureus was the most common pathogen identified.
Conclusions:
- Ultrasonography is a vital tool for diagnosing and managing pediatric primary psoas abscess.
- It facilitates effective drainage, often obviating the need for surgical intervention.
Background:
Primary psoas abscesses of the psoas muscle are relatively rare in childhood and can determine problems of diagnosis and therapeutic assumption.
Aim:
To demonstrate that ultrasonography is an excellent means in diagnosis and treatment of psoas abscess in children limiting the use of CT more costly and radiant and the surgery that is decaying.
Methods:
Over a 15 years period (January 1995-december 2009), 16 children with psoas abscess were studied retrospectively. The diagnosis gait was based on questioning, clinical examination and imaging techniques and, in first sight, ultrasonography.
Results:
Median age of our patients was 6.4 years (extremes 18 months-14 years) and mean delay of evolution was 12 days. Fever and lumbar pain were both constants, associated with another signs like painful boitery, psoitis, mictional burns and lumbar mass. The ultrasonography made in 16 patients allowed to the diagnosis in all cases. The tomodensitometry, made in 3 patients, confirmed the ultrasonography. Echo guided percutaneous drainage, made in 14 cases, was successful in 12. The examination of pus showed S Aureus in 11 cases and E coli in the other.
Conclusion:
Ultrasonography is a very important means in the primary psoas abscess in children. In addition to give diagnosis, this technique allows the drainage and the cure of the collection, limiting the open surgery to some particular cases.
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