Effects of zoledronic acid and tibolone on bone mineral density, indexes of bone metabolism, and the risk of fracture in patients with postmenopausal osteoporosis

Objective An open study was carried out to evaluate the effect of 2 year of zoledronic acid and tibolone treatment on bone mineral density(BMD),bone remodeling markers,and the risk of fracture in women with postmenopausal osteoporosis(PMOP).Methods In total,567 PMOP women,whose ages ranged 55-64 years,were randomized to 3 groups.185 patients received infusion zoledronic acid 5 mg/year,190 patients received oral tibolone 2.5 mg/d and the rest...