Dosing of Antibiotics During Reimplantation of Infected Knee and Hip Prostheses

Inclusion Criteria: * Adult patients (aged of 18 years or more) who undergo reimplantation surgery for infected hip or knee prosthesis (performed in 1 or 2-stage(s)), and for whom referral physicians plans to use an empirical antibiotic therapy including cefotaxime, ceftriaxone, cefepime, daptomycin, or vancomycin. Exclusion Criteria: * Patients with multiple prosthetic joint infections, or with curative antibiotic therapy ongoing within two weeks or less prior to surgery, or for whom an antibiotic prophylaxis is decided by referral for the reimplantation surgery, or for whom an antibiotic-loaded cement containing the same antibiotic chosen for empirical therapy after reimplantation was used in case of 2-stage exchange