Enterobacter cloacae Infection After Surgical Treatment of Ankle Fractures, a Multicenter Observational Study

Background: Infection is one of the challenging complications after open reduction and internal fixation for ankle fractures. Previously published case series conclude that Staphylococcus aureus is the most frequent causative microorganism. An unexpected increase in Enterobacter cloacae infections a...

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Published in:	Foot & ankle international Vol. 44; no. 5; pp. 424 - 430
Main Authors:	García Cardona, Carlos, Bernaus Johnson, Martí Carles, Martínez Ros, Javier, Hernández-Gonzalez, Nerea, Auñon Rubio, Álvaro, Anglès Crespo, Francesc, Arteagoitia-Colino, Iraia, Coifman-Lucena, Ismael, Esteban-Moreno, Jaime, Moral Escudero, Encarnación, Gómez García, Lucía, Nóvoa Martínez, Ricardo, Ortega Columbrans, Ana, Veloso Duran, Margarita, Font-Vizcarra, Lluís
Format:	Journal Article
Language:	English
Published:	Los Angeles, CA SAGE Publications 01-05-2023
Subjects:	Adult Ankle Fractures - surgery Child Coinfection Enterobacter cloacae Fracture Fixation, Internal - adverse effects Fracture Fixation, Internal - methods Humans Open Fracture Reduction - methods Retrospective Studies Treatment Outcome infection fracture complexity Enterobacter cloacae corticosteroid therapy negative pressure therapy older debridement ankle fracture
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Summary:	Background: Infection is one of the challenging complications after open reduction and internal fixation for ankle fractures. Previously published case series conclude that Staphylococcus aureus is the most frequent causative microorganism. An unexpected increase in Enterobacter cloacae infections after this surgery was observed in a preliminary analysis of data at the promoting center of the study. In traumatology, its incidence has been reported in chronic osteomyelitis, prosthetic infections, septic osteoarthritis, open fractures in children and adults, and fractures other than the ankle. Because of this unexpected finding, we decided to perform this study to analyze the demographic and microbiological variables of acute osteosynthesis infection after ankle fracture and determine the distinctive features of the patients with E cloacae infection. Methods: We performed a retrospective multicenter study including 4 university hospitals. All patients diagnosed with acute osteosynthesis infection after ankle fracture fixation between January 2015 and December 2018 were included. We analyzed demographic data, type of fracture, surgical technique, and microorganisms responsible for the infection. We performed a descriptive statistical analysis of the variables. Univariate and multivariate regression analysis were performed to compare patients with E cloacae infection to patients with infection caused by other microorganisms. Results: A total of 65 patients were included. A predominance of polymicrobial infections (24.62%), followed by infections caused by S aureus (23.07%) and E cloacae (23.07%) was observed. When E cloacae isolated in polymicrobial infections were added, the incidence of E cloacae as a causative microorganism increased to 32.3%. Patients with E cloacae infection were older (64/53, P = .008) and had a higher requirement of negative-pressure therapy after surgical debridement (71%/40%, P = .017). Conclusion: A high incidence of E cloacae infections was observed. Patients with E cloacae infection were generally older and required a higher use of negative-pressure therapy after debridement. Level of Evidence: Level V, mechanism-based reasoningr.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 ObjectType-Undefined-3
ISSN:	1071-1007 1944-7876
DOI:	10.1177/10711007231157688