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Septic arthritis of the acromioclavicular joint: an uncommon location
Melania Martínez-Morillo1, Lourdes Mateo Soria1, Anne Riveros Frutos1
1Servicio de Reumatología, Hospital Universitario Germans Trias i Pujol, Badalona, Barcelona, España.
Abstract:
Septic pyogenic arthritis of the acromioclavicular joint is a rare entity that occurs in immunosuppressed patients or those with discontinuity of defense barriers. There are only 15 cases described in the literature. The diagnosis is based on clinical features and the isolation of a microorganism in synovial fluid or blood cultures. The evidence of arthritis by imaging (MRI, ultrasound or scintigraphy) may be useful. Antibiotic treatment is the same as in septic arthritis in other locations. Staphylococcus aureus is the microorganism most frequently isolated. Our objective was to describe the clinical features, treatment and outcome of patients diagnosed with septic arthritis of the acromioclavicular joint at a Rheumatology Department. We developed a study with a retrospective design (1989-2012). The medical records of patients with septic arthritis were reviewed (101 patients). Those involving the acromioclavicular joint were selected (6 patients; 6%).
Insights
Septic pyogenic arthritis of the acromioclavicular joint is rare, often affecting immunocompromised individuals. This study details clinical features, treatment, and outcomes for this uncommon joint infection.
Area of Science:
- Rheumatology
- Infectious Diseases
- Orthopedic Surgery
Background:
- Septic pyogenic arthritis of the acromioclavicular joint is an infrequent condition.
- It predominantly affects immunosuppressed patients or those with compromised defense barriers.
- Only 15 cases have been documented in medical literature.
Purpose of the Study:
- To characterize the clinical presentation, therapeutic strategies, and patient outcomes.
- To describe cases of septic arthritis specifically affecting the acromioclavicular joint.
- To contribute to the limited understanding of this rare joint infection.
Main Methods:
- Retrospective study design analyzing medical records from 1989 to 2012.
- Review of 101 patients diagnosed with septic arthritis.
- Selection of 6 patients (6%) with acromioclavicular joint involvement.
Main Results:
- The study identified 6 cases of septic arthritis of the acromioclavicular joint.
- Clinical features, diagnostic methods (including imaging), and microbiological findings were analyzed.
- Treatment protocols and patient prognoses were evaluated.
Conclusions:
- Septic arthritis of the acromioclavicular joint, though rare, requires prompt diagnosis and appropriate antibiotic management.
- Further research is needed to fully elucidate optimal treatment and long-term outcomes for this condition.
- This study adds valuable data to the scarce literature on acromioclavicular joint septic arthritis.
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