Aerobic bacteriological Profile and Antibiotic Susceptibility Pattern of Surgical Site Infections in Orthopaedic Patients at Tertiary Care Hospital: VIMS, Ballari.

• Dr Jyoti R Hundekar,*  
• Dr Surekha Y A.,  
• S Sadiqa Begum

Abstract

Introduction: In developing countries, the problem of changes in pathogenic microbial flora and the emergence of bacterial resistance have created major problems in the management of orthopaedic cases. The most dreaded complications in the minds of all orthopedicians is the fear of infection. Once frank infection develops then it’s extremely difficult to treat. Objective: To determine the type of bacterial pathogens isolated from different orthopaedic cases in our hospital and their antibiotic sensitivity profile. Materials and methods: This study was conducted in the department of microbiology, VIMS Ballari, over a period of 1 year from Feb 2016 to Jan 2017. During this period 224 pus samples were collected from different orthopaedic cases. Standard microbiological techniques were used to isolate and determine antibiotic resistance pattern of organisms. Results: Among 224 samples, 66.51% (149/224) specimens showed culture positivity. The most commonly isolated organisms were 74(45.39%) Staphylococcus aureus, 30 (40.54%) were Methicillin Resistant Staphylococcus aureus (MRSA) while 44(59.47%) were Methicillin Sensitive Staphylococcus aureus (MSSA), followed by Pseudomonas aeruginosa 43 (26.38%), Klebsiella spp. 24 (14.72%). No bacterial isolate was found to be sensitive to all antibiotics tested. All Staphylococci were susceptible to Vancomycin. Most of gram negative bacilli were sensitive to Piperacillin/ Tazobactam, Tobramicin, and Imipenem. Conclusion: High rates of antibiotic resistance observed in our study, due to widespread usage of broad spectrum antibiotics. While deciding antibiotic therapy many factors must be considered like previous antibiotic history, knowledge of most common causative organism in these infections, and their antibiotic profile.

Keywords

Surgical site infections, Orthopaedic infections, Bacterial isolates, Antibiotic resistance