Is There a Difference in Microbiological Epidemiology and Effective Empiric Antimicrobial Therapy Comparing Fracture-Related Infection and Periprosthetic Joint Infection? A Retrospective Comparative Study

This study aims to investigate (1) microbial patterns in fracture-related infections (FRIs) in comparison to microbiological patterns of periprosthetic joint infections (PJIs), (2) the identification of effective empiric antibiotic therapy for FRIs and PJIs and (3) analysis of difficult-to-treat (DT...

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Main Authors: Markus Rupp, Susanne Baertl, Nike Walter, Florian Hitzenbichler, Martin Ehrenschwender, Volker Alt
Format: Article
Language:English
Published: MDPI AG 2021-07-01
Series:Antibiotics
Subjects:
Online Access:https://www.mdpi.com/2079-6382/10/8/921
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author Markus Rupp
Susanne Baertl
Nike Walter
Florian Hitzenbichler
Martin Ehrenschwender
Volker Alt
author_facet Markus Rupp
Susanne Baertl
Nike Walter
Florian Hitzenbichler
Martin Ehrenschwender
Volker Alt
author_sort Markus Rupp
collection DOAJ
description This study aims to investigate (1) microbial patterns in fracture-related infections (FRIs) in comparison to microbiological patterns of periprosthetic joint infections (PJIs), (2) the identification of effective empiric antibiotic therapy for FRIs and PJIs and (3) analysis of difficult-to-treat (DTT) pathogens. Patients treated for FRIs or PJIs from 2017 to 2020 were evaluated for pathogens detected during treatment. Antibiotic susceptibility profiles were examined with respect to broadly used antibiotics and antibiotic combinations. Resistance rates to rifampicin or fluoroquinolone were determined. A total of 81 patients with PJI and 86 with FRI were included in the study. For FRIs <i>Staphylococcus aureus</i> was the most common infection-causing pathogen (37.4% vs. 27.9% for PJI). Overall, there was no statistical difference in pathogen distribution (<i>p</i> = 0.254). For FRIs, combinations of gentamicin + vancomycin (93.2%), co-amoxiclav + glycopeptide and meropenem + vancomycin (91.9% each) would have been effective for empiric therapy, similar to PJIs. Difficult to treat pathogens were more frequently detectable in PJIs (11.6% vs. 2.3%). Empiric therapy combinations such as gentamicin + vancomycin, co-amoxiclav + glycopeptide or meropenem + vancomycin, are effective antibiotic strategies for both FRI and PJI patients. More DTT pathogens were detectable in PJIs compared to FRIs.
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spelling doaj.art-c94c6ddfa34341a6bffb7628e8e4fc242023-11-22T06:33:17ZengMDPI AGAntibiotics2079-63822021-07-0110892110.3390/antibiotics10080921Is There a Difference in Microbiological Epidemiology and Effective Empiric Antimicrobial Therapy Comparing Fracture-Related Infection and Periprosthetic Joint Infection? A Retrospective Comparative StudyMarkus Rupp0Susanne Baertl1Nike Walter2Florian Hitzenbichler3Martin Ehrenschwender4Volker Alt5Department for Trauma Surgery, University Medical Center Regensburg, 93053 Regensburg, GermanyDepartment for Trauma Surgery, University Medical Center Regensburg, 93053 Regensburg, GermanyDepartment for Trauma Surgery, University Medical Center Regensburg, 93053 Regensburg, GermanyDepartment of Infection Prevention and Infectious Diseases, University Medical Center Regensburg, 93053 Regensburg, GermanyInstitute of Clinical Microbiology and Hygiene, University Medical Center Regensburg, 93053 Regensburg, GermanyDepartment for Trauma Surgery, University Medical Center Regensburg, 93053 Regensburg, GermanyThis study aims to investigate (1) microbial patterns in fracture-related infections (FRIs) in comparison to microbiological patterns of periprosthetic joint infections (PJIs), (2) the identification of effective empiric antibiotic therapy for FRIs and PJIs and (3) analysis of difficult-to-treat (DTT) pathogens. Patients treated for FRIs or PJIs from 2017 to 2020 were evaluated for pathogens detected during treatment. Antibiotic susceptibility profiles were examined with respect to broadly used antibiotics and antibiotic combinations. Resistance rates to rifampicin or fluoroquinolone were determined. A total of 81 patients with PJI and 86 with FRI were included in the study. For FRIs <i>Staphylococcus aureus</i> was the most common infection-causing pathogen (37.4% vs. 27.9% for PJI). Overall, there was no statistical difference in pathogen distribution (<i>p</i> = 0.254). For FRIs, combinations of gentamicin + vancomycin (93.2%), co-amoxiclav + glycopeptide and meropenem + vancomycin (91.9% each) would have been effective for empiric therapy, similar to PJIs. Difficult to treat pathogens were more frequently detectable in PJIs (11.6% vs. 2.3%). Empiric therapy combinations such as gentamicin + vancomycin, co-amoxiclav + glycopeptide or meropenem + vancomycin, are effective antibiotic strategies for both FRI and PJI patients. More DTT pathogens were detectable in PJIs compared to FRIs.https://www.mdpi.com/2079-6382/10/8/921empiric antimicrobial therapyfracture-related infectionprosthetic joint infectiondifficult to treat pathogens
spellingShingle Markus Rupp
Susanne Baertl
Nike Walter
Florian Hitzenbichler
Martin Ehrenschwender
Volker Alt
Is There a Difference in Microbiological Epidemiology and Effective Empiric Antimicrobial Therapy Comparing Fracture-Related Infection and Periprosthetic Joint Infection? A Retrospective Comparative Study
Antibiotics
empiric antimicrobial therapy
fracture-related infection
prosthetic joint infection
difficult to treat pathogens
title Is There a Difference in Microbiological Epidemiology and Effective Empiric Antimicrobial Therapy Comparing Fracture-Related Infection and Periprosthetic Joint Infection? A Retrospective Comparative Study
title_full Is There a Difference in Microbiological Epidemiology and Effective Empiric Antimicrobial Therapy Comparing Fracture-Related Infection and Periprosthetic Joint Infection? A Retrospective Comparative Study
title_fullStr Is There a Difference in Microbiological Epidemiology and Effective Empiric Antimicrobial Therapy Comparing Fracture-Related Infection and Periprosthetic Joint Infection? A Retrospective Comparative Study
title_full_unstemmed Is There a Difference in Microbiological Epidemiology and Effective Empiric Antimicrobial Therapy Comparing Fracture-Related Infection and Periprosthetic Joint Infection? A Retrospective Comparative Study
title_short Is There a Difference in Microbiological Epidemiology and Effective Empiric Antimicrobial Therapy Comparing Fracture-Related Infection and Periprosthetic Joint Infection? A Retrospective Comparative Study
title_sort is there a difference in microbiological epidemiology and effective empiric antimicrobial therapy comparing fracture related infection and periprosthetic joint infection a retrospective comparative study
topic empiric antimicrobial therapy
fracture-related infection
prosthetic joint infection
difficult to treat pathogens
url https://www.mdpi.com/2079-6382/10/8/921
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