Wound infections after orthopedic surgery: distribution and resistance situations of microorganisms

Abstract

Aim: Wound infections are one of the important complications of orthopedic surgery. In this study it was aimed to determine the causative microorganisms, isolation regions and antimicrobial resistance states in the postoperative surgical wound infections. Material and Method: Between 01.09.2015 - 30.09.2017, postoperative surgical wound infections of patients who applied to our orhopedia and traumatology clinic were retrospectively evaluated and 57 microorganisms were isolated. For identification of species of isolated microorganisms, conventional methods and VITEK 2 Compact® (Biomerieux, France) automated bacterial identification system were used. For antibiotic susceptibility testing VITEK2 Compact® (Biomerieux, France) automated susceptibility system were used. Results: A total of 57 microorganisms isolated, 32 (56%) were gram negative and 25 (44%) gram positive bacteria. The most frequently isolated bacteria were S. aureus 22 (38.5%) and others in order E. coli 15 (26.3%), E. cloacea 7 (12.3%), A. baumanii 3 (5.3%), P. aeroginosa 3(5.3%) E. aerogenes 1 (1.8%), E. faecalis 1 (1.8%) , E. americana 1 (1.8%) K. pneumonia 2 (3.5%), S. haemolyticus 2 (1.8%) species. With 23 isolates the hip was the orthopedic region in which the most microorganism was isolated. Antibiotic resistance rates of S. aureus isolates are very low compared to S. heamolyticus isolates. A. baumanii isolates were the most resistant in gram negatives. Conclusion: Cleaning and a sepsis of the hands and incision area are very important in preventing postoperative infections. For successful treatment of these infections, infectious agents and their in vitro antibiotic susceptibility should be known. Thus, with the use of rational antibiotics the success of treatment will increase the spread of resistant hospital infections will be prevented and the costs of treatment will be reduced.