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>Role of internal fixation in infection of open fractures: Studies withStaphylococcus aureusandProteus mirabilis
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Role of internal fixation in infection of open fractures: Studies withStaphylococcus aureusandProteus mirabilis
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机译：Role of internal fixation in infection of open fractures: Studies withStaphylococcus aureusandProteus mirabilis
AbstractStudies of infections in open fractures are described. The hamster was chosen as the experimental model. Osteotomies of the femur were created with an osteotomy saw. Some osteotomies were left to heal and others were fixed with an 0.9mm K‐wire. The infection rates in fixed and unfixed fractures were compared. The first group of hamsters with fixed and unfixed osteotomies was returned to cages with open wounds. There was no difference in the infection rate at 2 weeks. The second group was deliberately contaminated withStaphylococcus aureusand then returned to cages with open wounds. In this group, the infection rate at 2 weeks was lower in the internally‐fixed fractures than in the unfixed fractures. The third group was deliberately contaminated with the gram negative organismProteus mirabilis. In these animals, the infection rate was increased in the presence of the internal fixation device. The fourth group was deliberately contaminated with bothStaphylococcus aureusandProteus mirabilis. The infection rate in these animals was very high; Proteus was recovered from those animals with internal fixation andStaphylococcuswas recovered from those animals without internal fixation. These studies in the hamster document the usefulness of this animal as an inexpensive and reproducible model for studying infection of open fractures. The hamsters tolerated the procedure well, and wound and fracture healing progressed satisfactor
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