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"Bilateral Capnocytophaga Canimorsus Periprosthetic Joint Infections in an Immunocompromised Patient: A Case Report
Philomena Burger1, Mina Botros2, Katelyn S Quartuccio3
1University of Rochester School of Medicine and Dentistry, Rochester, NY, USA.
Abstract:
A 63-year-old dog owner with bilateral total knee arthroplasties developed periprosthetic joint infections bilaterally due to Capnocytophaga canimorsus (C canimorsus), a bacterium commonly found in the saliva of dogs and cats. Aerobic and anaerobic cultures from explant surgery were negative; however, bacterial 16S polymerase chain reaction followed by sequencing of the amplified product identified C canimorsus in both knees. Treatment was successful with bilateral explant, antibiotic spacers, intravenous antibiotics, and reimplantation. C canimorsus is a rare cause of prostheses infections. As total knee arthroplasty prevalence increases, infections will also increase. Treatment is best provided with collaboration among orthopaedic surgeons, infectious disease specialists, and pharmacists.
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