Glucocorticoid-induced osteoporosis.(Miscellaneous)

摘要

Purpose of review: To present an overview of the peer-reviewed literature relating to glucocorticoid-induced osteoporosis that has been published since January 2006. Recent findings: Understanding the pathophysiology of bone loss resulting from glucocorticoid use has become clearer. The role of the receptor-activated nuclear factor [kappa]B-ligand-osteoprotogerin system has been clarified and will likely lead to better targeted therapies. Minimal trauma fractures occur in patients treated with glucocorticoids at higher bone mineral density than is seen with other primary or secondary causes of osteoporosis. Uncertainty still remains about the lowest dose of glucocorticoids that is not associated with bone loss. Bisphosphonates remain the treatment of choice for glucocorticoid-induced osteoporosis, but despite this effective therapy the disease remains under recognized and undertreated. Summary: Glucocorticoid-induced osteoporosis is a leading cause of secondary osteoporosis, one of the more devastating consequences of glucocorticoid therapy. Bone mineral density underestimates the risk of fragility fractures in glucocorticoid-induced osteoporosis, which may account for the underrecognition and undertreatment of the disease prior to fracture.