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Polyarticular septic arthritis in an 11-year-old child

Raquel Campanilho-Marques1, Vas Novelli, Paul A Brogan

  • 1Paediatric Rheumatology Department, Great Ormond Street Hospital NHS Foundation Trust and UCL Institute of Child Health, London, UK, raquelpcmarques@gmail.com.

Clinical Rheumatology
|January 23, 2014
PubMed

Insights

Polyarthritis in children presents a diagnostic challenge. Streptococcus pyogenes was identified via 16S polymerase chain reaction (PCR) in a child with septic arthritis, even with negative cultures, highlighting PCR

Area of Science:

  • Pediatric rheumatology
  • Infectious diseases
  • Molecular diagnostics

Background:

  • Polyarthritis in children is a complex diagnostic problem with a broad differential diagnosis.
  • Septic arthritis, a serious joint infection, requires prompt identification and treatment.

Observation:

  • A previously healthy child presented with polyarticular septic arthritis, a complication of osteomyelitis.
  • Initial synovial fluid cultures were negative for bacterial pathogens.

Findings:

  • Streptococcus pyogenes was identified as the causative agent using 16S polymerase chain reaction (PCR).
  • This molecular method proved crucial for diagnosis when conventional cultures failed.

Implications:

  • Early and aggressive treatment is vital for favorable outcomes in pediatric septic arthritis.
  • 16S ribosomal DNA amplification (PCR) is a valuable tool for detecting microorganisms in culture-negative septic arthritis cases.

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