首页> 外文期刊>Comparative Medicine >An Acute Osteomyelitis Model in Traumatized Rat Tibiae Involving Sand as a Foreign Body, Thermal Injury, and Bimicrobial Contamination
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An Acute Osteomyelitis Model in Traumatized Rat Tibiae Involving Sand as a Foreign Body, Thermal Injury, and Bimicrobial Contamination

机译:创伤性胫骨创伤性骨炎的急性模型,涉及沙子作为异物,热损伤和微生物污染。

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Themultfactorialnatureofboneinjuriesinmodernwarfareandemergencytraumapatientswarrantsenhancementofexistingmodels.Todevelopamoreappropriatemodel,rattibiae(n=195)weremechanicallyinjured,dividedinto2groups(withorwithoutthermalinjury),andcontaminatedwitharangeofStaphylococcusaureus(Cowan1)inocula.Insomeexperiments,S.aureusinoculaalsocontainedEscherichiacoliorforeignbodies(sandorsoil).TheprimaryoutcomemeasurewastheamountofS.aureusremaininginthetibia(tibialbacterialload)24haftercontamination,reportedaslogsubxmlns="http://pub2web.metastore.ingenta.coms/"10/subcfu/gbone.S.aureusshowedIDsubxmlns="http://pub2web.metastore.ingenta.coms/"50/subandIDsubxmlns="http://pub2web.metastore.ingenta.coms/"95/subvaluesof72and977cfu,respectively.ValueswerelowerthanseenpreviouslybyusingS.aureusstrainSMH.S.aureustibialbacterialloadswerehigherintibiaewithmechanicalandthermalinjury(logsubxmlns="http://pub2web.metastore.ingenta.coms/"10/sub4.15±0.27cfu/g)versusmechanicalinjuryalone(logsubxmlns="http://pub2web.metastore.ingenta.coms/"10/sub3.1±0.47cfu/g,P=0.028).TheadditionofE.colitotheS.aureusinoculumhadnoeffectontibialbacterialloads(S.aureusonly,logsubxmlns="http://pub2web.metastore.ingenta.coms/"10/sub4.24±0.92cfu/g;S.aureus+E.coli,logsubxmlns="http://pub2web.metastore.ingenta.coms/"10/sub4.1±1.0cfu/g,P=0.74).Sand,addedasaforeignbody,increasedtibialbacterialload.CombinedmechanicalandthermaltraumaofthetibiaisassociatedwithincreasedS.aureustibialbacterialloads,increasingtheriskofacuteosteomyelitis.Understandingtheinterplayofmechanicalandthermalinjuries,bimicrobialcontamination,andforeignbodiesmayimproveourunderstandingoftraumaticboneinjuriesandthepathogenesisofosteomyelitis.
机译:Themultfactorialnatureofboneinjuriesinmodernwarfareandemergencytraumapatientswarrantsenhancementofexistingmodels.Todevelopamoreappropriatemodel,rattibiae(N = 195)weremechanicallyinjured,dividedinto2groups(withorwithoutthermalinjury),andcontaminatedwitharangeofStaphylococcusaureus(Cowan1)inocula.Insomeexperiments,S.aureusinoculaalsocontainedEscherichiacoliorforeignbodies(sandorsoil).TheprimaryoutcomemeasurewastheamountofS.aureusremaininginthetibia(tibialbacterialload)24haftercontamination,reportedaslog 10 cfu / gbone.S.aureusshowedID 50 andID < subxmlns =“ http://pub2web.metastore.ingenta.coms/”> 95 值分别为72和977cfu。以前使用S.aureusstrainSMH.S.aureustibialbacterialloadssweerererowersthanseenthansowerlythansoweredbysinguperinerbiabiarewithmechanicalandthermalinjury(log <2.subwebns =“ .com / ns /“> 10 4.15±0.27cfu / g)对机械损伤的影响(log 10 3.1±0.47cfu / g,P = 0.028)。大肠杆菌中添加金黄色葡萄球菌对胫骨细菌的负荷无影响(仅S.aureus,log 104.24±0.92cfu/g;S.aureus+E.coli,log104.1±1.0cfu/g,P=0.74).Sand,addedasaforeignbody,increasedtibialbacterialload.C​​ombinedmechanicalandthermaltraumaofthetibiaisassociatedwithincreasedS.aureustibialbacterialloads,increasingtheriskofacuteosteomyelitis.Understandingtheinterplayofmechanicalandthermalinjuries,bimicrobialcontamination,andforeignbodiesmayimproveourunderstandingoftraumaticboneinjuriesandthepathogenesisofosteomyelitis。

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