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Case Reports in Orthopedics
Volume 2016, Article ID 7171947, 5 pages
Case Report

A Case of Penicillin-Resistant Veillonella Prosthetic Joint Infection of the Knee

1Division of Infectious Diseases, Mayo Clinic Health System (MCHS-W), Waycross, GA, USA
2Departments of Pathology and Laboratory Medicine, Mayo Clinic Health System-Waycross, Waycross, GA, USA
3Division of Infectious Diseases, Mayo Clinic, Jacksonville, FL, USA
4Department of Orthopedics, Mayo Clinic Health System-Waycross, Waycross, GA, USA
5Department of Orthopedic Surgery, Mayo Clinic, Jacksonville, FL, USA

Received 16 August 2016; Revised 18 October 2016; Accepted 30 October 2016

Academic Editor: Koichi Sairyo

Copyright © 2016 Claudia R. Libertin et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Veillonella sp. and V. dispar are emerging pathogens. This is the third case of a monomicrobial Veillonella sp. prosthetic joint infection (PJI) among knees and hips; this is the second prosthetic knee infection described. The infection was treated with a 2-stage procedural approach combined with 6 weeks of ceftriaxone with excellent clinical response. There was no relapse in 2 years of follow-up care. This case exemplifies the importance of incubating anaerobic cultures for at least 7 days to grow some anaerobic pathogens.