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Updated: Aug 9, 2026

Knee Arthrocentesis in Adults
Published on: February 25, 2022
[Infectious arthritis in a patient with rheumatoid arthritis]
C F Lassen1, C M Jensen, C Tørholm
1Fysiurgisk/reumatologisk afdeling U, Amtssygehuset i Gentofte.
Abstract:
Patients with rheumatoid arthritis are at greater risk of developing joint infections than any other group of patients. Diagnosis is often delayed because of the difficulties in distinguishing between a flare-up and a septic affection of the joint. A case of septic arthritis with multiple joint involvement and lethal outcome despite extensive antibiotic treatment and successive surgical procedures is presented. The patient developed osteomyelitis and multiple organ failure. In order to reduce morbidity and mortality from septic arthritis, early joint puncture and subsequent antibiotic treatment is essential.
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