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. 2013 Jul;57(7):3424-6.
doi: 10.1128/AAC.00463-13. Epub 2013 Apr 29.

Antimicrobial susceptibility of Propionibacterium acnes isolates from shoulder surgery

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Antimicrobial susceptibility of Propionibacterium acnes isolates from shoulder surgery

John K Crane et al. Antimicrob Agents Chemother. 2013 Jul.

Abstract

Orthopedic surgeons at our institution have noticed an increase in the number of infections due to Propionibacterium acnes, especially following operations on the shoulder. We collected P. acnes isolates from our hospital microbiology laboratory for 1 year and performed antimicrobial susceptibility testing on 28 strains from the shoulder. Antibiotics with the lowest MIC values against P. acnes (MIC50 and MIC90) included penicillin G (0.006, 0.125), cephalothin (0.047 and 0.094), and ceftriaxone (0.016, 0.045), while others also showed activity. Strains resistant to clindamycin were noted.

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Fig 1
Fig 1
Histogram of MIC values for clindamycin and linezolid from the orthopedic isolates. MIC values for the strains are displayed as a histogram, with the number of isolates falling into each bin of the MIC ranges shown. (A) Clindamycin; (B) linezolid.

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References

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