Objective To explore the effect of minimally invasive transpedicular bone grafting additional ver -tebral pedicle screw fixation in the treatment of thoracolumbar fracture .Methods 60 patients with thoracolumbar fracture were randomly divided into the observation group and the control group ,30 cases in each group .The control group received traditional open inter vertebral four nail pedicle screw fixation combined with posterolateral bone graft fusion for treatment while the observation group was treated by minimally invasive transpedicular bone grafting addi -tional vertebral pedicle screw fixation ,to analyze the clinical effects .Results The imaging parameters of postopera-tion[the sagittal index(1.9 ±7.1)°,Cobb's angle(4.2 ±3.5)°,change of vertebral body height (90.2 ±6.5)%]in the observation group were significantly better than those of the control group (t=6.78,6.80,7.02,all P<0.05). The imaging parameters 3 months after operation[the sagittal index(4.9 ±3.2)°,Cobb's angle(7.0 ±2.7)°,change of vertebral body height (87.6 ±4.1)%] in the observation group were significantly better than those of the control group(t=6.78,6.80,7.02,all P<0.05).The operation time,incision length,bleeding volume,postoperative drain-age,postoperative hospital stay of the observation group were (141.9 ±14.2)min,(10.8 ±1.7)cm,(105.7 ±12.3)mL, (5.6 ±4.1)mL,(6.6 ±1.1)d,respectively,which were significantly better than those of the control group (t=7.72,7.89,5.68,all P<0.05).Conclusion Minimally invasive transpedicular bone grafting additional vertebral pedicle screw fixation has a significant effect in the treatment of thoracolumbar fractures ,which is safe and reliable .

OBJECTIVE:To systematically review the efficacy and safety of the generic and original preparation of atorvas-tatin,and provide evidence-based reference for clinical treatment. METHODS:Retrieved from PubMed,EMBase,Cochrane Li-brary,CJFD,Wanfang Database,VIP and CBM,related randomized controlled trials(RCT)about generic preparation of atorvas-tatin(test group)versus original preparation of atorvastatin(control group)were collected. Meta-analysis was performed by using Rev Man 5.3 software after data extract and quality evaluation. RESULTS:Totally 16 RCTs were included,involving 2 077 pa-tients. Results of Meta-analysis showed,compared with control group,there were no significant differences in reducing total choles-terol (TC) [MD=-0.06,95%CI(-0.14,0.01),P=0.11],triglyceride (TG) [MD=-0.00,95%CI(-0.08,0.08),P=0.99], low-density lipoprotein cholesterol (LDL-C) [MD=-0.07,95%CI(-0.16,0.01),P=0.09],increasing high-density lipoprotein cholesterol(HDL-C)[MD=-0.00,95% CI(-0.03,0.03),P=0.96] and the incidence of major adverse cardiac events(MACE) [OR=1.18,95%CI(0.71,1.97),P=0.52] in test group;in terms of safety,compared with control group,there were no significant differences in the resulting in alanine aminotransferase (ALT) increased [OR=1.08,95%CI(0.51,2.30),P=0.83],the incidences of myalgia [OR=2.46,95%CI(0.70,8.65),P=0.16] and gastrointestinal adverse reactions [OR=1.11,95%CI(0.64,1.95),P=0.71]. CONCLUSIONS:Both the generic and original preparation of atorvastatin can effectively reduce blood lipid levels,with sim-ilar safety.