In France, the incidence of native joint infections is about 10 per 100 000 person-years, most commonly caused by S.aureus followed by b-haemolytic streptococci. French and international antibiotic guidelines, based on expert advice and retrospective studies, recommend intravenous antibiotics for two weeks, then oral for 4 weeks without evident link between intravenous, prolonged oral treatment and cure. Long term exposure to antibiotics increases bacterial resistance, a major problem of public health. Several studies show that serious infectious can be treated safely by a shorter treatment and with oral antibiotics. There is no randomized controlled trial to establish the duration of antibiotics in native joint infections. Moreover, no consensus prevails on the administration route and duration of antimicrobial therapy. Although most clinicians acknowledge the interest of oral antibiotics and shorter treatment duration, randomized controlled trials are necessary to evaluate this practice. The SHASAR project aims to evaluate whether a shorter antibiotic treatment (3 week treatment) is safe and not inferior to the conventional 6 week treatment in native joint infections. If successful, this would represent a major advance in terms of patients' quality of life; decreased rate of health-care-related infections and complications, bacterial resistance and cost.
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Cure at 16 weeks (4 months) after the beginning of the treatment
Timeframe: 16 weeks after Day 0