Comperative evaluation of tigecycline and teikoplanin in the treatment of experimental implant related MRSA osteomyelitis in a rat model

Background: Treatment of acute and chronic orthopaedic infections is difficult and often requires prolonged antibiotic therapy and surgical treatment. The agents which are used to treat osteomyelitis infections that implant releated and caused by MRSA are limited.Objective: Our aim was to investigate the comperative evaluation of tigecycline and teicoplanin in the treatment of implant related, MRSA osteomyelitis on experimental rat models.Materials and Methods: Sixty female adult Wistard Albino rats, divided into 6 groups in which each group included 10 rats were used in our study. In these rat groups, implant related MRSA osteomyelitis was implanted in their right tibial metaphysis. At the end of 3 weeks, implants were removed from 3 groups. Two groups, including 1 implanted and 1 without implant were left untreated, while the remaining 4 groups were treated with two different antibiotics for 4 weeks. At the end of the study period, the results of the 6 groups were compared.Results: The number of colonisan microorganisms were found to be significantly lower than the control grups, while there were no statistically significant differences between tigecycline and teicoplanin groups.Conclusions: Despite there was no superiority of a new generation antibiotic tigecycline to teicoplanin, it has been considered as an alternative to teicoplanine in clinical settings. However, further studies are needed for more effective medical treatment of implant-related osteomyelitis.