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Factitious septic arthritis

T G Elliott1, D Burdge, G D Reid

  • 1Department of Medicine, University of British Columbia, Vancouver, Canada.

Insights

Septic arthritis of the knee can arise from factitious illness, specifically from repeated self-injections. This highlights the spectrum of factitious disease syndromes, including malingering and Munchausen syndrome.

Area of Science:

  • Medicine
  • Infectious Diseases
  • Rheumatology

Background:

  • Septic arthritis, a serious joint infection, is rarely linked to factitious disorders.
  • Factitious illnesses involve intentionally produced or feigned physical or psychological signs and symptoms.

Observation:

  • Two patients presented with septic arthritis of the knee following repeated self-administration of intraarticular injections.
  • Unusual and diverse infective agents were identified in both cases.

Findings:

  • The cases demonstrate a connection between self-induced intraarticular injections and the development of septic arthritis.
  • The clinical presentations are consistent with malingering and Munchausen syndrome, representing factitious disease syndromes.

Implications:

  • Highlights the importance of considering factitious disorders in patients with unexplained septic arthritis, especially after self-injection.
  • Underscores the diagnostic challenges posed by factitious illnesses and the need for thorough patient evaluation.
  • Suggests the potential for rare and unusual pathogens in factitious septic arthritis.

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