Efficacy of Zoledronic Acid in Preventing Collapse of the Osteonecrotic Femoral Head
Status:
Completed
Trial end date:
2012-06-01
Target enrollment:
Participant gender:
Summary
The purpose of this study is to test the effect of zoledronic acid over 2 years in preventing
early collapse and progression of joint dome depression (≥ 2 mm by X-ray) of the femoral head
in patients with large (> 30%: criteria according to Kim et al) nontraumatic osteonecrosis.