目前,大肠埃希菌仍然是医院感染的主要病原菌之一。常见的感染部位是呼吸道、泌尿道、消化道、手术部位等。手术后大肠埃希菌感染病例报道较少,骨科手术后感染的报道更少,容易被忽视。随着大肠埃希菌耐药菌株的增加,临床上频繁应用的抗菌药物的耐药性有逐步升高的趋势,尤其是氨 Currently, Escherichia coli is still one of the major pathogens in nosocomial infections. Common infection sites are the respiratory tract, urinary tract, gastrointestinal tract, surgical site and so on. Less cases of Escherichia coli infection after surgery, less post-orthopedic infection reports, easily overlooked. With the increase of drug-resistant strains of Escherichia coli, the antibiotic resistance frequently used clinically tends to increase gradually, especially ammonia