[Pyogenic sacroiliac arthritis in children. Apropos of 6 cases].

Pyogenic arthritis of the sacro-iliac joint is uncommon in children; 6 cases were observed over 4 years. The diagnosis may be difficult and should include specific examination of the sacro-iliac joint. Posterior pain with a febrile illness needs radiological examination and a skeletal scintigraphy, which has always been positive in our experience. All the patients had a very good functional recovery after antibiotherapy and rest (bed or plaster).