Patella Osteomyelitis Mimicking Sinding-Larsen and Johansson Apophysitis: A Pitfall Not to Miss

Area of Science:

• Pediatric Orthopedics
• Pediatric Infectious Diseases
• Pediatric Radiology

Background:

• Osteomyelitis of the patella (OMP) is a rare pediatric bone infection.
• OMP presents with subtle symptoms, often mimicking overuse injuries or apophysitis.
• High clinical suspicion is essential for early diagnosis.

Observation:

• A case of acute OMP in a 12-year-old boy is reported.
• The patient was treated with joint and patella puncture aspiration followed by antibiotics.
• Clinical and radiological findings, orthopedic follow-up, and outcome are presented.

Findings:

• Diagnosis of OMP is challenging due to nonspecific symptoms and rarity.
• Radiological imaging, including MRI and CT, aids in diagnosis.
• Bone aspiration or biopsy is crucial for confirming OMP and initiating treatment.

Implications:

• Prompt diagnosis and treatment of OMP are vital for favorable outcomes in children.
• This case highlights the importance of considering OMP in pediatric patients with knee pain.
• Effective management involves aspiration, biopsy, and a course of antibiotics.