(Reuters Health)—It takes 12.4 months of bisphosphonate therapy to prevent one nonvertebral fracture per 100 postmenopausal women with osteoporosis, a meta-analysis of randomized clinical trials suggests.1 Researchers examined data on 10 randomized clinical trials with a total of 23,384 women who had an osteoporosis diagnosis based on either existing vertebral fractures or a bone mineral…