Corticosteroid-associated osteonecrosis: a rare, but serious, complication in uveitis.

Purpose: To examine the incidence and prevalence of osteonecrosis in uveitis patients.

Methods: An electronic medical record database search was conducted to identify uveitis patients with osteonecrosis and the number at risk for corticosteroid-related osteonecrosis from 2003 to 2012. The clinical and ophthalmologic features of the uveitis patients with osteonecrosis were assessed with retrospective chart reviews.

Results: Six uveitis patients with osteonecrosis were identified, comprising a prevalence of 1.5%. The incidence density was 0.19 per 100 person-years of follow-up. The uveitides included sarcoidosis, sympathetic ophthalmia, idiopathic retinal vasculitis, idiopathic chronic anterior and intermediate uveitis, Vogt-Koyanagi Harada disease, and Cogan syndrome. The duration of systemic corticosteroid treatment ranged from 6 weeks to 6 years. The potential systemic risk factors were Raynaud phenomenon, antiphospholipid and autoantibodies, sickle cell trait, and thalassemia.

Conclusions: Although osteonecrosis appears to be a rare complication among uveitis patients, physicians should strive to minimize systemic corticosteroid use when appropriate. A higher level of suspicion for osteonecrosis may be warranted in patients with additional systemic risk factors.