Acute septic arthritis in chronic osteonecrosis of the hip
Phillips, F.M.; Pottenger, L.A.
Journal of Rheumatology 15(11): 1713-1716
1988
ISSN/ISBN: 0315-162X PMID: 3266251 Document Number: 315614
Osteonecrosis is not well documented as a predisposing factor of septic arthritis despite such a relationship having obvious clinical significance. We report 4 patients with involvement of 5 hips with septic arthritis in established osteonecrotic joints. The etiologies of the osteonecrosis in our study included corticosteroid therapy, sickle cell disease and one case of idiopathic osteonecrosis. Osteonecrosis appears to render the hip more susceptible to hematogenously derived bacterial infection. In some cases, removal of the necrotic tissue may be necessary to cure the infection.