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Ultrasonic features of acute osteomyelitis in children
E T Mah1, G W LeQuesne, R J Gent
1Women's and Children's Hospital, Adelaide, South Australia.
Insights
Ultrasonography effectively detects early signs of osteomyelitis in children, including soft-tissue swelling and subperiosteal fluid. This imaging technique aids in diagnosing bone infections and their complications.
Area of Science:
- Pediatric Orthopedics
- Diagnostic Imaging
- Musculoskeletal Infections
Background:
- Osteomyelitis is a serious bone infection in children.
- Early diagnosis is crucial for effective treatment and preventing complications.
- Conventional diagnostic methods may have limitations in early detection.
Purpose of the Study:
- To evaluate the utility of ultrasonography in diagnosing pediatric osteomyelitis.
- To correlate ultrasonic findings with the duration of symptoms in children with osteomyelitis.
- To assess the role of ultrasonography in identifying complications of osteomyelitis.
Main Methods:
- Retrospective analysis of ultrasonic findings in 38 children with limb bone osteomyelitis.
- Classification of patients into four groups based on symptom onset to ultrasonography interval.
- Detailed description of sequential ultrasonic features observed in acute and chronic stages.
Main Results:
- Deep soft-tissue swelling was the earliest ultrasonic sign.
- Periosteal elevation and subperiosteal fluid/abscess formation were observed in later stages.
- Cortical erosion was common after one week of symptoms; 11 patients had concurrent septic arthritis.
Conclusions:
- Ultrasonography is a valuable tool for the early diagnosis of pediatric osteomyelitis.
- It effectively visualizes disease progression and complications like septic arthritis.
- Ultrasonography shows normal findings after clinical cure, supporting its use in monitoring recovery.
Abstract:
The ultrasonic findings in 38 children with osteomyelitis of the limb bones were analysed in four time-related groups based on the interval between the onset of symptoms and the ultrasonic examination. Deep soft-tissue swelling was the earliest sign of acute osteomyelitis; in the next stage there was periosteal elevation and a thin layer of subperiosteal fluid, and in some cases this progressed to form a subperiosteal abscess. The later stages were characterised by cortical erosion, which was commonly present in those who had had symptoms for more than a week. Concurrent septic arthritis was revealed in 11 patients, most frequently in association with osteomyelitis of the proximal femur or the distal humerus. Four weeks after clinical cure, ultrasonic examination showed no abnormalities. Ultrasonography is therefore a useful additional method for the diagnosis and assessment of osteomyelitis and its complications.
