Small-colony variant of Staphylococcus lugdunensis in prosthetic joint infection

Askar, Mohamed; Bloch, Benjamin; Bayston, Roger

Abstract

Prosthetic joint infection is usually caused by staphylococci. Among the coagulase-negative staphylococci, Staphylococcus lugdunensis is important because it behaves as a pathogen similar to S aureus. It also develops biofilms, and the biofilm phenotype can appear as small-colony variants. Although genetically indistinguishable, they differ in size and antibiotic susceptibility from the parent strain and are responsible for chronic persistent infection and failure of antibiotic treatment. They can also lead to misinterpretation of results. The patient reported here underwent total knee replacement and 2 years later presented with prosthetic joint infection. Tissue samples and prosthesis taken at revision grew S lugdunensis, the majority of which were small-colony variants. Recommendations are made for their detection and identification.

Citation

Askar, M., Bloch, B., & Bayston, R. (2018). Small-colony variant of Staphylococcus lugdunensis in prosthetic joint infection. Arthroplasty Today, 4(3), 257-260. https://doi.org/10.1016/j.artd.2018.06.003

• Journal Article Type: Article
• Acceptance Date: Jun 15, 2018
• Online Publication Date: Jul 30, 2018
• Publication Date: 2018-09
• Deposit Date: Aug 20, 2018
• Publicly Available Date: Aug 20, 2018
• Journal: Arthroplasty Today
• Print ISSN: 2352-3441
• Electronic ISSN: 2352-3441
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 4
• Issue: 3
• Pages: 257-260
• DOI: https://doi.org/10.1016/j.artd.2018.06.003
• Keywords: Infection; Joint; Prosthetic; Staphylococcus lugdunensis
• Public URL: https://nottingham-repository.worktribe.com/output/1038500
• Publisher URL: https://www.sciencedirect.com/science/article/pii/S2352344118300657
• Contract Date: Aug 20, 2018