[Acute pyogenic sacroiliac arthritis in children]

Three children with pyogenic arthritis of the sacroiliac joints are presented. A study of the literature shows that this condition, although not well known, is not uncommon in childhood. Clinical features and particularly physical examination of the sacroiliac joints are described. They should lead to suspect sacroiliac disease. Radioisotope bone scanning is of great help as it substantially reduces the delay in correct diagnosis. Antibiotic treatment is usually sufficient for adequate management of pyogenic sacroiliitis. The intravenous route for antibiotic administration is not mandatory.