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Osteomyelitis of the pelvis and proximal femur: diagnostic difficulties
1Royal Hospital for Sick Children, Sciennes Road, Edinburgh, EH9 1LF, UK.
Insights
Late diagnosis of pelvic osteomyelitis in children is common due to deep infection. High suspicion and advanced imaging are crucial for early detection and preventing complications like hip joint sepsis.
Area of Science:
- Pediatric Orthopedics
- Infectious Diseases
Background:
- Pelvic and proximal femur osteomyelitis in children can be challenging to diagnose early.
- Deeply seated infections may be misdiagnosed as septic arthritis, delaying appropriate treatment.
Purpose of the Study:
- To highlight the diagnostic challenges of periacetabular osteomyelitis in children.
- To emphasize the importance of early and accurate diagnosis to prevent complications.
Main Methods:
- Retrospective review of 16 pediatric cases of periacetabular infection diagnosed between 1994 and 1998.
- Analysis of diagnostic methods, including radiographs and ultrasound, and their limitations.
Main Results:
- Radiographs of the pelvis were often normal within the first week of symptoms.
- Ultrasound scans focused on the hip joint may not detect periarticular changes.
- Delayed diagnosis led to complications, including unnecessary surgery and hip joint sepsis.
Conclusions:
- A high index of suspicion is essential for diagnosing pelvic osteomyelitis in children.
- Appropriate imaging techniques are critical to avoid misdiagnosis and progression of the infection.
- Early intervention can prevent severe complications associated with pediatric pelvic osteomyelitis.
Abstract:
Osteomyelitis of the pelvis or proximal femur may still be diagnosed late because the infection is deeply placed and investigations may concentrate solely upon the possibility of septic arthritis. Periacetabular infection was diagnosed in 16 children between 1994 and 1998. A high index of suspicion and the use of appropriate imaging will ensure that the condition is not allowed to progress, although in this series one child underwent an unnecessary appendectomy, and a subsequent sepsis of the hip joint was drained in another case. Radiographs of the pelvis were rarely abnormal within 7 days of the onset of symptoms and an ultrasound scan focused on the hip joint may miss the periarticular changes.
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