J. Verska et Jf. Ritterbusch, RADIODENSE LINES AND SUBCLINICAL INFECTION IN PEDIATRIC HIP-SURGERY, Journal of pediatric orthopedics, 14(1), 1994, pp. 45-47
A subtle radiolucency with surrounding sclerosis was seen in 14 of 129
hip implant removals in 90 children. Five of these implants were cult
ured, and all five grew Staphylococcus epidermidis. The other nine wer
e not cultured. None of the 14 had sequela. These radiographic finding
s should prompt suspicion of infection even in the absence of clinical
or laboratory findings; they should also prompt hardware removal.