Ultrasound (US) is a proven method of identifying subperiosteal absces
s formation in osteomyelitis, but its precise role in the management o
f children with the condition is contentious. We reviewed nine childre
n in whom US was used in the management of long bone osteomyelitis, in
cluding ribs. US was helpful in confirming the presence of a subperios
teal abscess in those children with an appropriate history and localiz
ing signs. In these circumstances a bone scan is unnecessary. Problems
were encountered when US failed to identify a subperiosteal abscess,
because of the early stage of the disease process, and in multifocal a
bnormalities. In these circumstances a bone scan should still be perfo
rmed.