J Korean Orthop Assoc.  2011 Aug;46(4):340-344. 10.4055/jkoa.2011.46.4.340.

Septic Knee Arthritis Caused by Group B Salmonella Species in a Patient with Systemic Lupus Erythematosus

• Choi CH
• Lee RH
• Lee JK

• KMID: 2185433
• DOI: http://doi.org/10.4055/jkoa.2011.46.4.340

Abstract

Infection is a leading cause of death in patients with systemic lupus erythematosus (SLE). Insufficiency of the reticuloendothelial system, immunosuppressive therapy and inadequate opsonization are the main predisposing factors for infection. Salmonella infection is one of the most common opportunistic bacterial infections in patients with SLE and it can provoke a bacteremia or a localized infection. We report here on a rare case of septic knee arthritis caused by Group B Salmonella in a SLE patient, and this was treated with arthroscopic irrigation and antibiotics.

Keyword

septic arthritis; systemic lupus erythematosus; Salmonella

MeSH Terms

Anti-Bacterial Agents
Arthritis
Arthritis, Infectious
Bacteremia
Bacterial Infections
Cause of Death
Humans
Knee
Lupus Erythematosus, Systemic
Mononuclear Phagocyte System
Salmonella
Salmonella Infections
Anti-Bacterial Agents

Figure

• 

  Figure 1 Proton density weighted magnetic resonance imaging coronal view (A) shows geographic pattern of focal increases in signal intensity and irregularity of the subchondral cortical outline at distal femur and proximal tibia. Fat suppressed T2-weighted image (B) shows large amount of joint effusion.

• 

  Figure 2 (A) Synovial debris and thick synovium at suprapatella pouch. (B) ACL is enveloped in a inflammatory synovium. (C) Softening was seen on the tibial cartilage.

• 

  Figure 3 Photographs taken 3 months postoperatively show excellent range of motion of the infected knee without erythema.

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