Résumés
Résumé
Les méthodes non invasives de mesure de la densité osseuse, appelées densitométrie, ont transformé l’approche diagnostique et thérapeutique des maladies osseuses métaboliques. De très nombreuses études cliniques ont montré les propriétés métrologiques de ces techniques et leur valeur prédictive. La technique de référence est l’absorptiométrie biphotonique à rayons X dont les résultats sont décrits dans cet article.
Summary
Measurement of bone mineral density (BMD) using dual energy X-ray absorptiometry is the basis of the definition of osteoporosis. Accuracy, precision and sensitivity of the method are good enough for clinical use. Prospective studies have shown that there is a gradient of risk between the decrease in BMD, related to age and hormonal insufficiency, and the increase in the incidence of fracture. Thus, therapeutic decision is based on both BMD and clinical risk factors that contribute to fracture risk.
Parties annexes
Références
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