Antibiotic regimen | Dosing |
Preferred regimens include: | |
One of the following: | |
Levofloxacin | 500 to 750 mg daily |
Ciprofloxacin | 500 to 750 mg twice daily |
plus | |
RifampinΔ | 300 to 450 mg twice daily◊ |
Alternative regimens include: | |
One of the following agents:§ | |
Trimethoprim-sulfamethoxazole | 1 double-strength tablet twice daily |
Doxycycline | 100 mg twice daily |
Minocycline | 100 mg twice daily |
Dicloxacillin | 500 mg 3 or 4 times daily |
Cefadroxil | 500 mg twice daily |
Cephalexin | 500 mg 3 or 4 times daily |
Flucloxacillin | 500 mg 3 or 4 times daily |
Fusidic acid (where available)¥ | 500 mg 3 times daily |
plus | |
RifampinΔ | 300 to 450 mg twice daily◊ |
PJI: prosthetic joint infection.
* For patients with S. aureus PJI with retained hardware following debridement (eg, debridement and retention of prosthesis or 1-stage exchange), antibiotic therapy consists of pathogen-specific intravenous therapy in combination with rifampin for 2 to 6 weeks (refer to the UpToDate topic on treatment of PJI for further discussion). Thereafter, subsequent therapy for patients who undergo debridement and retention of hip, elbow, shoulder, or ankle PJI consists of pathogen-specific oral therapy in combination with rifampin to complete a total duration of 3 months. Subsequent therapy for patients who undergo debridement and retention of knee PJI consists of pathogen-specific oral therapy in combination with rifampin to complete a total duration of 6 months. Subsequent therapy for patients who undergo 1-stage exchange consists of pathogen-specific oral therapy in combination with rifampin to complete a total duration of 3 months.
¶ Following administration of antibiotic therapy as summarized in this table, indefinite antibiotic suppression with an oral regimen may be warranted in some patients; refer to the UpToDate topic on treatment of PJI for further discussion.
Δ Patients who cannot take rifampin because of drug resistance, allergy, toxicity, intolerance, or drug-drug interactions should remain on intravenous antistaphylococcal therapy for 4 to 6 weeks (before transitioning to antibiotic suppression with an oral regimen, if warranted).
◊ We favor administration of rifampin 450 orally twice daily; the dose may be reduced to 300 mg orally twice daily in the setting of nausea.
§ Alternative agents given with rifampin are recommended for patients who cannot take a fluoroquinolone due to allergies, intolerances, or resistance. If an alternative agent is used, confirm susceptibility.
¥ Not available in the United States. Fusidic acid should not be used alone; it must be combined with a second active agent to reduce the likelihood of selection for drug resistance. When rifampin is combined with fusidic acid, fusidic levels may be reduced.