[Steroid-induced osteoporosis].

Bone-related steroid involvement is one of the most frequent complications of steroid treatment. Epidemiological data demonstrate that osteoporosis starts early during the treatment, predominantly involves trabecular bone and is correlated to dosage and treatment duration. Mechanisms and consequences of steroid bone involvement are related to osseous and extra-osseous mechanisms. In clinical practice, steroid-induced osteoporosis remains underdiagnosed and undertreated both in preventive and curative approaches. Recently, new molecules as teriparatide and zoledronic acid got indication for the treatment of steroid-induced osteoporosis. To guide treatment strategies, several recommendations are available: French, not updated recommendations since 2003 (Afssaps, 2003), European elaborated by the EULAR in 2007 and those of the ACR updated in 2010.