55 pts w/ Multi-joint osteonecrosis (>2 jts).( SLE 29%, ALL 11%, HIV 9%, EtOH 4%). Mean cumulative steroid dose >30 g over 5 yrs. Predictors of MJON was cumulative oral steroid dose (3.2% incr per 1000 mg. MJON risk incr 12 X w/ 2nd risk factor https://t.co/dqTPh2PV8V https://t.co/HTrSnZSefK