Evaluation of calcaneal quantitative ultrasound in a primary care setting as a screening tool for osteoporosis in postmenopausal women.

Screening of osteoporosis by quantitative ultrasound (QUS) has become widely available in Europe, but no clear strategies for its clinical use have been established. The aim of this study was to validate the use of QUS in a cross-sectional study carried out in three primary care centers. Measurements of calcaneal QUS and bone mineral density (BMD) at proximal femur were obtained by dual-energy X-ray absorptiometry (DXA). Osteoporosis was diagnosed by DXA T-score