Nongonococcal Infectious Arthritis Treatment & Management
- Author: Edward Dwyer, MD; Chief Editor: Herbert S Diamond, MD more...
Medical Care
- The most important consideration in the treatment of infectious arthritis is the rapid institution of appropriate antimicrobial therapy. Daily joint aspiration must be performed until inflammation subsides.
- Patients with bacterial arthritis must be hospitalized.
- Intravenous antibiotic therapy is initiated immediately upon admission. If the results of a Gram stain of synovial fluid identify no organism, initiate empiric therapy based on the clinical characteristics of the host.
- Healthy adults can be treated with antistaphylococcal penicillin or cephalosporin. Patients who reside in communities with a high prevalence of community-acquired methicillin-resistant S aureus should be initially treated with vancomycin pending culture results.[8]
- Elderly debilitated patients or patients with chronic medical conditions require expanded antimicrobial coverage to cover gram-negative bacteria. This usually requires the addition of a third-generation cephalosporin, an aminoglycoside, or a quinolone.
- Patients with nosocomial infections in whom pseudomonal species are considered may need an extended-spectrum penicillin such as piperacillin or carbenicillin.
- Cultural sensitivities, when available, may help identify appropriate modifications to subsequent therapy.
- Depending on the causative organism, most experts recommend 2-4 weeks of parenteral therapy.
- Institute daily arthrocentesis of the affected joint until synovial fluid culture results are negative or considerable clinical improvement in the joint is apparent.
- Fungal arthritis is appropriately treated with intravenous amphotericin B plus an oral azole. The recommended duration of therapy is 6-12 weeks, for a total dose of 1-3 g of amphotericin B.[9]
- Mycobacterial arthritis treatment varies depending on the infecting agent.
- Patients with M tuberculosis infection are treated initially with 4 drugs (rifampin, isoniazid, pyrazinamide, ethambutol [RIPE]) for 2 months; then, depending on the sensitivities, isoniazid and rifampin are continued for a total of 9-12 months.[9]
- An M marinum infection requires rifampin and ethambutol for 6-12 weeks.
Surgical Care
- Joints that do not respond to antimicrobial therapy and daily arthrocentesis require drainage and debridement, either with arthroscopy or with an open procedure.
- A joint with an infected prosthesis requires removal of the prosthesis and reimplantation after an appropriate course of antimicrobial therapy.
Consultations
- Rheumatologist
- Orthopedic surgeon
Activity
- Encourage either passive or active daily range-of-motion exercises.
- Avoid immobilizing the joint.
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