Type III Gustilo–Anderson open fracture does not justify routine prophylactic Gram-negative antibiotic coverage

Abstract Postoperative surgical site infection (SSI) is common in open long bone fractures, so early administration of prophylactic antibiotics is critical to prevent SSI. However, the necessity of initial broad-spectrum coverage for Gram-positive and -negative pathogens remains unclear. The purpose...

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Main Authors: Takashi Suzuki, Takahiro Inui, Miyoshi Sakai, Keisuke Ishii, Taketo Kurozumi, Yoshinobu Watanabe
Format: Article
Language:English
Published: Nature Portfolio 2023-05-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-023-34142-7
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author Takashi Suzuki
Takahiro Inui
Miyoshi Sakai
Keisuke Ishii
Taketo Kurozumi
Yoshinobu Watanabe
author_facet Takashi Suzuki
Takahiro Inui
Miyoshi Sakai
Keisuke Ishii
Taketo Kurozumi
Yoshinobu Watanabe
author_sort Takashi Suzuki
collection DOAJ
description Abstract Postoperative surgical site infection (SSI) is common in open long bone fractures, so early administration of prophylactic antibiotics is critical to prevent SSI. However, the necessity of initial broad-spectrum coverage for Gram-positive and -negative pathogens remains unclear. The purpose of this study was to clarify the effectiveness of prophylactic broad-spectrum antibiotics in a large, national-wide sample. We reviewed an open fracture database of prospectively collected data from 111 institutions managed by our society. A retrospective cohort study was designed to compare the rates of deep SSI between narrow- and broad-spectrum antibiotics, which were initiated within three hours after injury. A total of 1041 type III fractures were evaluated at three months after injury. Overall deep SSI rates did not differ significantly between the narrow-spectrum group (43/538, 8.0%) and broad-spectrum group (49/503, 9.8%) (p = 0.320). During propensity score-matched analysis, 425 pairs were analyzed. After matching, no significant difference in the SSI rate was seen between the narrow- and broad-spectrum groups, with 42 SSIs (9.9%) and 40 SSIs (9.4%), respectively (p = 0.816). The probability of deep SSI was not reduced by broad-spectrum antibiotics compared with narrow-spectrum antibiotics in type III open long bone fractures.
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spelling doaj.art-9cdefabe6dbc4d8292acc58964ed1ac12023-05-07T11:13:40ZengNature PortfolioScientific Reports2045-23222023-05-011311810.1038/s41598-023-34142-7Type III Gustilo–Anderson open fracture does not justify routine prophylactic Gram-negative antibiotic coverageTakashi Suzuki0Takahiro Inui1Miyoshi Sakai2Keisuke Ishii3Taketo Kurozumi4Yoshinobu Watanabe5Trauma and Reconstruction Center, Teikyo University HospitalTrauma and Reconstruction Center, Teikyo University HospitalDepartment of Hygiene and Public Health, Teikyo University School of MedicineTrauma and Reconstruction Center, Teikyo University HospitalTrauma Center, Federation of National Public Service Personnel Mutual Aid Associations, Toranomon HospitalTrauma and Reconstruction Center, Teikyo University HospitalAbstract Postoperative surgical site infection (SSI) is common in open long bone fractures, so early administration of prophylactic antibiotics is critical to prevent SSI. However, the necessity of initial broad-spectrum coverage for Gram-positive and -negative pathogens remains unclear. The purpose of this study was to clarify the effectiveness of prophylactic broad-spectrum antibiotics in a large, national-wide sample. We reviewed an open fracture database of prospectively collected data from 111 institutions managed by our society. A retrospective cohort study was designed to compare the rates of deep SSI between narrow- and broad-spectrum antibiotics, which were initiated within three hours after injury. A total of 1041 type III fractures were evaluated at three months after injury. Overall deep SSI rates did not differ significantly between the narrow-spectrum group (43/538, 8.0%) and broad-spectrum group (49/503, 9.8%) (p = 0.320). During propensity score-matched analysis, 425 pairs were analyzed. After matching, no significant difference in the SSI rate was seen between the narrow- and broad-spectrum groups, with 42 SSIs (9.9%) and 40 SSIs (9.4%), respectively (p = 0.816). The probability of deep SSI was not reduced by broad-spectrum antibiotics compared with narrow-spectrum antibiotics in type III open long bone fractures.https://doi.org/10.1038/s41598-023-34142-7
spellingShingle Takashi Suzuki
Takahiro Inui
Miyoshi Sakai
Keisuke Ishii
Taketo Kurozumi
Yoshinobu Watanabe
Type III Gustilo–Anderson open fracture does not justify routine prophylactic Gram-negative antibiotic coverage
Scientific Reports
title Type III Gustilo–Anderson open fracture does not justify routine prophylactic Gram-negative antibiotic coverage
title_full Type III Gustilo–Anderson open fracture does not justify routine prophylactic Gram-negative antibiotic coverage
title_fullStr Type III Gustilo–Anderson open fracture does not justify routine prophylactic Gram-negative antibiotic coverage
title_full_unstemmed Type III Gustilo–Anderson open fracture does not justify routine prophylactic Gram-negative antibiotic coverage
title_short Type III Gustilo–Anderson open fracture does not justify routine prophylactic Gram-negative antibiotic coverage
title_sort type iii gustilo anderson open fracture does not justify routine prophylactic gram negative antibiotic coverage
url https://doi.org/10.1038/s41598-023-34142-7
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