Changing pattern of osteomyelitis in infants and children

R Tröbs1, R Möritz, U Bühligen

  • 1Klinik und Poliklinik für Kinderchirurgie, Theresienstrasse 43, D-04129 Leipzig, Germany.

Insights

This study on pediatric osteomyelitis (OM) found Staphylococcus aureus as a common cause. Early intervention for suppurative arthritis is crucial to prevent long-term complications in children.

Area of Science:

  • Pediatric Orthopedics
  • Infectious Diseases
  • Rheumatology

Background:

  • Osteomyelitis (OM) is a significant bone infection in children.
  • Understanding its etiology, clinical course, and treatment outcomes is vital for effective management.

Purpose of the Study:

  • To retrospectively analyze pediatric osteomyelitis cases managed between 1966 and 1996.
  • To evaluate the causative pathogens, clinical presentation, and treatment results.
  • To identify risk factors for unfavorable outcomes and explore atypical forms like chronic recurrent multifocal osteomyelitis (CRMO).

Main Methods:

  • Retrospective analysis of 332 children diagnosed with osteomyelitis.
  • Bacterial culture analysis to identify pathogens.
  • Clinical data review for disease course, sequelae, and risk factors.
  • Evaluation of 10 patients with suspected CRMO since 1989.

Main Results:

  • Bacterial cultures were positive in 64% of cases, with Staphylococcus aureus being the most frequent pathogen.
  • Long bones were affected in two-thirds of cases; 27% had associated arthritis.
  • Moderate to severe sequelae were observed in 19% of re-evaluated patients.
  • Early infancy onset, suppurative arthritis, and epiphyseal involvement were risk factors for poor outcomes.
  • Atypical forms, including CRMO (affecting clavicle in 6/10 patients), were observed with elevated ESR but normal inflammatory markers.
  • Histopathology in CRMO showed lymphoplasmacellular infiltration, suggesting a probable nonbacterial origin.

Conclusions:

  • Staphylococcus aureus is a primary pathogen in pediatric osteomyelitis.
  • Prompt surgical drainage of suppurative arthritis is essential to minimize sequelae.
  • Chronic recurrent multifocal osteomyelitis (CRMO) presents with distinct clinical and laboratory findings, likely having a nonbacterial etiology, though histopathology is inconclusive for differentiation.
  • Risk factor identification aids in predicting and managing pediatric osteomyelitis outcomes.

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