A 7-year retrospective review from 2005 to 2011 of Propionibacterium acnes shoulder infections in Ottawa, Ontario, Canada

Abstract This study evaluated the clinical factors associated with Propionibacterium acnes shoulder infection and the standard culture procedures for isolating P. acnes from shoulder specimens by a 7-year retrospective analysis. P. acnes was incriminated as the second most common pathogen in 17 of 8...

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Bibliographic Details
Published in:Diagnostic microbiology and infectious disease 2013-02, Vol.75 (2), p.195-199
Main Authors: Wang, Bing, Toye, Baldwin, Desjardins, Marc, Lapner, Peter, Lee, Craig
Format: Article
Language:English
Subjects:
Adult
Aged
Arthroplasty
Bacterial culture
Chi-Square Distribution
Female
Gram-Positive Bacterial Infections - epidemiology
Gram-Positive Bacterial Infections - microbiology
Humans
Infectious Disease
Internal Medicine
Joint Diseases - epidemiology
Joint Diseases - microbiology
Male
Middle Aged
Ontario - epidemiology
Propionibacterium acnes
Propionibacterium acnes - isolation & purification
Prosthesis-Related Infections - epidemiology
Prosthesis-Related Infections - microbiology
Retrospective Studies
Shoulder infection
Shoulder Joint - microbiology
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Summary:Abstract This study evaluated the clinical factors associated with Propionibacterium acnes shoulder infection and the standard culture procedures for isolating P. acnes from shoulder specimens by a 7-year retrospective analysis. P. acnes was incriminated as the second most common pathogen in 17 of 80 patients with positive shoulder cultures. All of the 17 patients had prior shoulder implant. The cumulative rates for isolating P. acnes were 1.9%, 1.9%, 41.9%, 96.4%, and 100% at day 1 to day 5 of incubation, respectively. The standard practice of anaerobic culture was able to detect P. acnes from shoulder specimens in patients with a clinical suspicion of infection. The sensitivity and specificity of prolonged incubation remain to be determined.
ISSN:0732-8893
1879-0070
DOI:10.1016/j.diagmicrobio.2012.10.018