| ObjectivesTo explore risk factors associated with postoperative inflammatory complications(POIC)after rigid internal fixation of mandibular fractures.MethodsA case-control study was designed and a sample of 447 patients treated with rigid internal fixation for mandibular fractures were selected from January 2006 to December 2012.26 patients developed POIC after treatment were categorized into the experimental group.26 cases with no complications were enrolled into the control group.Data were collected and bivariate and multiple logistic analyses were used to identify factors associated with POIC between the two groups by SAS9.2 software package.ResultsIn multiple regression model,an increasing Mandibular Injury Severity Score(odds ratio=2.509;95% confidence interval 1.083-5.814)and health condition below the baseline(odds ratio=5.019;95% confidence interval 1.294-19.472)were significantly(P<0.05)associated with an increased risk for a POIC.But in bivariate analyses,the use of antibiotics was associated with POIC(P<0.05).ConclusionsPostoperative inflammatory complications was associated with the mandibular injury severity and health condition of the patients. |