This is a study of current care, monocentric, randomized, open. 170 patients will be followed for 6 months. The group control will receive the usual recommendations to make an appointment of realization of bone densitometry. The SMS group will receive 3 SMS (at 15 days, 5 weeks and 3 months) after consulting the time of consultation in Emergency department, and will be called during 10 minutes at 6 months by a nurse.