The Effect Of Static Magnetic Field On The Growth Of Common Bacteria In Bone Infection

Objective: This study aims to explore the effects of static magnetic field on the growth of three common bacteria in bone infections: E.coli,Streptococcus faecalis and Staphylococcus aureus through in vitro experiments,and to clarify the application of static magnetic field in open fractures and infectious Even the safety of fracture healing treatment provides a certain theoretical basis for the clinical application of static magnetic field in orthopedics.Methods : In this study,three common bacteria were selected for bone infection: Escherichia coli(ATCC25922),Staphylococcus aureus(ATCC29213),and Streptococcus faecalis(ATCC29212)as the subjects of the experiment.The experiment was divided into two groups,the magnetic field group was placed in a uniform static magnetic field(150m T),and the control group had no static magnetic field intervention.Both were cultivated at a constant temperature environment of 24 ° C.After 24 h,500ul of bacterial suspension was diluted and inoculated to Columbia blood plate was cultured for 24 h,and then the number of colonies on the plate was detected for comparison.Experime ntal results: The three strains of Staphylococcus aureus,Streptococcus faecalis,and Escherichia coli were exposed to a uniform static magnetic field(150m T)for 24 hours after continuous exposure.Conclusion: Our preliminary research suggests that a static magnetic field of 150 m T intensity has no significant effect on the growth of Escherichia coli,Streptococcus faecalis,and Staphylococcus aureus.The static magnetic field is used as an adjunct to open fractures and infectious bone nonunion to promote fractures The healing treatment is safe.