Osteomyelitis secondary to trauma or infected contiguous soft tissue

Area of Science:

• Pediatric Infectious Diseases
• Orthopedic Surgery
• Microbiology

Background:

• Nonhematogenous osteomyelitis (NHO) presents diagnostic challenges, particularly in pediatric patients.
• Predisposing factors include compound fractures, deep decubiti, and foot punctures.
• NHO can affect various long bones and foot bones.

Purpose of the Study:

• To analyze the clinical presentation, diagnosis, and treatment outcomes of pediatric nonhematogenous osteomyelitis.
• To highlight the difficulties in diagnosing NHO, especially following compound fractures.
• To emphasize the importance of bone cultures in guiding therapy.

Main Methods:

• Retrospective review of 24 pediatric patients with NHO admitted between 1980 and 1985.
• Analysis of predisposing factors, clinical symptoms, laboratory findings, radiographic results, and microbiological data.
• Evaluation of treatment strategies, including antibiotic administration and surgical debridement, and recurrence rates.

Main Results:

• Common pathogens included Staphylococcus aureus and Pseudomonas aeruginosa.
• Initial radiographs were nondiagnostic in 42% of cases with compound fractures.
• Bone cultures were positive in 83% of tested patients, while wound cultures were unreliable.
• Recurrence rates were high (42%) despite prolonged antibiotic treatment and debridement.

Conclusions:

• The indolent nature of NHO complicates early diagnosis.
• Prompt bone culture is essential for accurate diagnosis and targeted antimicrobial therapy.
• Wound cultures are not reliable predictors of bone culture results in NHO.