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Infantile infectious sacroiliitis
Insights
Pyogenic sacroiliitis in infants can mimic hip joint infections. Radionuclide imaging is crucial for accurate diagnosis when hip aspiration is negative, enabling prompt treatment.
Area of Science:
- Pediatric Infectious Diseases
- Medical Imaging
- Orthopedic Surgery
Background:
- Pyogenic sacroiliitis is a rare but serious infection in infants.
- Clinical presentation can be non-specific, often mimicking septic arthritis of the hip.
Observation:
- Two infant cases of pyogenic sacroiliitis are described.
- Initial clinical assessments suggested septic arthritis of the hip in both infants.
Findings:
- Radionuclide scanning revealed increased uptake in the sacroiliac joints, leading to the correct diagnosis.
- Negative hip aspiration results were noted in both cases.
Implications:
- Highlights the diagnostic challenge of infantile pyogenic sacroiliitis.
- Emphasizes the critical role of radionuclide imaging in differentiating sacroiliitis from hip joint pathology.
- Underscores the need for rapid diagnostic imaging in infants with suspected hip inflammation and negative hip aspiration.
Abstract:
Two infants with pyogenic sacroiliitis are presented. In both babies, the clinical findings were initially attributed to septic arthritis of the ipsilateral hip. The correct diagnosis was not established in either infant until radionuclide scanning showed increased uptake in the ipsilateral sacroiliac joints. Both cases emphasize the importance of proceeding quickly to radionuclide imaging in the baby with clinical and laboratory findings of inflammation in the vicinity of the hip and a negative hip aspiration.