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Updated: Aug 2, 2026

06:02
Posterior Approach for Debridement of the Psoas Abscess
Published on: March 2, 2020
[Psoas abscess in pyogenic sacroiliitis]
Ugeskrift for Laeger
|March 13, 1999
Summary
A rare case of psoas abscess secondary to sacroiliitis in a 47-year-old man was successfully treated. Prompt surgical intervention and prolonged antibiotics led to full recovery.
Area of Science:
- Infectious Diseases
- Orthopedic Surgery
- Radiology
Background:
- Psoas abscesses are typically associated with spinal infections or gastrointestinal sources.
- Sacroiliitis, inflammation of the sacroiliac joint, can present with varied symptoms.
Observation:
- A 47-year-old male presented with persistent septic fever despite initial psoas abscess drainage and antibiotics.
- Imaging revealed sacroiliitis, suggesting an alternative or primary source of infection.
Findings:
- Surgical revision of the sacroiliac joint was performed.
- The patient received nine weeks of antibiotic therapy.
- Complete recovery was achieved, indicating the psoas abscess was secondary to sacroiliitis.
Implications:
- This case highlights the importance of considering sacroiliitis in the differential diagnosis of unexplained psoas abscesses.
- It underscores the need for comprehensive diagnostic workup when initial treatments fail.
- Early recognition and management of sacroiliitis can prevent severe complications like secondary abscess formation.
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