Evaluation of Postoperative Wound Culture Results at an Orthopedic Clinic: A Three-year Analysis
Abstract
Objective: Wound infections constitute the most prevalent postoperative complication encountered by orthopedists. Lack of timely and correct treatment may lead to chronic wound infections. Therefore, this study aims to guide empirical treatment, investigate the isolated bacteria and associated antibiotic resistance states in wound cultures obtained after orthopedic surgery.
Methods: In the three-year period between January 2016 and end of December 2018, 3100 patients were operated in the Orthopedics and Traumatology Clinic of the Kirsehir Ahi Evran University Training and Research Hospital. Wound cultures obtained from patients operated due to wound infections were retrospectively evaluated. Antibiotic susceptibility tests were performed in accordance with EUCAST guidelines using disc diffusion methods and the VITEK 2 Compact® (Biomerieux, France) automated system.
Results: A total of 284 wound culture specimens were evaluated, and 85 (22.9%) of these demonstrated significant bacterial growth. Monomicrobial growth was detected in 92% and polymicrobial growth was found in 8% of the cultures. The most commonly isolated microorganism was Escherichia coli (22.3%), followed by coagulase negative staphylococci (CoNS) (20%), Staphylococcus aureus (15.3%), Acinetobacter baumannii (9.4%), Pseudomonas aeruginosa (9.4%) and Streptococcus spp. (5.8%) respectively. Extended-spectrum beta-lactamase (ESBL) positivity was determined as 100% and 25% for E. coli and K. pneumoniae isolates, respectively. Carbapenems were found to be the most effective antibiotics to Enterobacteriales family. Gram positive bacteria were not resistant against vancomycin and teicoplanin, but 7.6% of S. aureus strains and 57.1% of CoNS were methicillin-resistant.
Conclusion: Identification and monitoring of causative microorganisms in postoperative wound infections and antibiotic resistance rates at every hospital is quite important. Taking these findings into consideration will result in better prevention of infections, increased treatment success, and decreased antibiotic resistance rates.
Keywords
References
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Details
Primary Language
English
Subjects
Orthopaedics
Journal Section
Research Article
Authors
Hicabi Sezgin
*
0000-0002-1332-3656
Türkiye
Publication Date
January 12, 2020
Submission Date
July 14, 2019
Acceptance Date
October 19, 2019
Published in Issue
Year 2020 Volume: 6 Number: 1