Objective:To investigate the effect of early debridement and open reduction combined with internal and external fixation on open fracture of tibia and fibula.Methods:The clinical data of 82 patients with open tibiofibular fractures admitted to the 901st Hospital of the Joint Logistic Support Force of the Chinese People′s Liberation Army from June 2017 to May 2018 were retrospectively analyzed. There were 42 males and 40 females, aged 20-62 years, with an average age (34.8±16.1) years. According to different surgical methods, they were divided into control group ( n=32) and observation group ( n=50). The patients in the control group received early debridement and limited internal fixation, the patients in the observation group received early debridement and open reduction combined with internal and external fixation. The operation time, blood loss, healing time, erythrocyte sedimentation rate (ESR), C-reactive protein (CRP) level, white blood cell count (WBC), excellent rate and complication rate were observed in both groups. The measurement data were expressed as mean±standard deviation( Mean± SD), comparison between groups was analyzed using independent sample t test, count data were expressed as percentage (%), comparison between groups was performed using chi-square test. Results:The operative time (98.35±15.14) min in the observation group were higher than those in the control group (79.26±13.22) min, blood loss (120.53±41.66) mL and healing time (16.84±5.07) min in the observation group were significantly lower than those in the control group [(79.26±13.22) min, (210.59±56.60) mL, (19.48±5.46) min]. The difference was statistically significant ( t values were 5.85, 7.76, 2.20, P<0.05). Compared with control group, the level of ESR (18.91±2.70) mm/h, CRP (39.20±3.13) ng/L, WBC (7.04±1.12)×10 3/L were significantly lower than control group [(27.36±3.28) mm/h, (45.63±4.06) ng/L, (11.06±1.51)×10 3/L]. The difference was statistically significant ( t values were 12.17, 7.63, 12.95, P<0.05). Compared with control groups′s excellent and good rate, the excellent and good rate of observation group was higher, but the difference was not statistically significant ( P>0.05). The incidence of complications in the observation group (6.00%, 3/50) was significantly lower than that in the control group (31.25%, 10/50) ( P<0.05). Conclusions:Early debridement and open reduction combined with internal and external fixation is an effective method for the treatment of open fracture of tibia and fibula. Compared with internal fixation, it has the advantages of shorter healing time, less blood loss and lower incidence of complications. And it can also reduce the inflammatory response of patients.

Objective To develop a rapid and sensitive method to quantify the substitution of amino acid (aa) 70 in hepatitis C virus (HCV) genotype 1 b core region.Methods Specific primers and TaqManminor groove binder probes were designed to establish a real time reverse transcription-polymerase chain reaction for aa70 substitution.The specificity,sensitivity and accuracy of the system were tested.Results The probes could clearly distinguish 70W and 70M.The detection limit for each system was 5 copies/ reaction.Further tests using cloning sequencing confirmed the reliability of the detection system.Conclusions A novel system was developed and provides an effective,sensitive,and accurate approach to quantify the wild type and mutant strains of HCV 1b core region as70.