Overview Zoledronic Acid Treatment of Spontaneous Osteonecrosis of the Knee Status: Withdrawn Trial end date: 2009-05-01 Target enrollment: Participant gender: Summary This study will assess the safety and efficacy of zoledronic acid in patients presenting with spontaneous osteonecrosis of the knee. Phase: Phase 2 Details Lead Sponsor: NovartisTreatments: DiphosphonatesZoledronic Acid