ULTRASONIC FEATURES OF ACUTE OSTEOMYELITIS IN CHILDREN

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 sof t-tissue swelling was the earliest sign of acute osteomyelitis; in the next stage there was periosteal elevation and a thin layer of subperi osteal fluid, and in some cases this progressed to form a subperiostea l abscess. The later stages were characterised by cortical erosion, wh ich was commonly present in those who had had symptoms for more than a week. Concurrent septic arthritis was revealed in 11 patients, most f requently in association with osteomyelitis of the proximal femur or t he distal humerus. Four weeks after clinical cure, ultrasonic examinat ion showed no abnormalities. Ultrasonography is therefore a useful add itional method for the diagnosis and assessment of osteomyelitis and i ts complications.