BACKGROUND:Treatment of complex tibial plateau fracture is a difficulty in orthopaedic trauma. Comprehensive assessment and appropriate surgical plan before surgery are the key points of surgery.
OBJECTIVE:To investigate the application value of three-dimensional reconstruction and virtual surgical techniques in assessing and surgical planning of complex tibial plateau fracture before surgery.
METHODS:The CT scan data of 30 patients with tibial plateau fracture were imported into the Mimics 13.0 software to establish the three-dimensional digital models of complex tibial plateau fracture, and three-dimensional measurements and reclassification was performed according to three-column classification were made. Virtual surgeries such as bone window operation, reduction of the fracture and bone grafting were made in these models.
RESULTS AND CONCLUSION:Reconstructed three-dimensional digital models of complex tibial plateau fracture could indicate the characteristics of fracture accurately, could be observed at any direction, and could help doctors to reclassify the fracture according to three-column classification. Virtual surgeries of bone window operation, reduction of the fracture and bone grafting made in computer by Mimics 13.0 were confirmed to be vividly simulate the clinical surgery, and helpful in estimating the amount of bone grafting. Three-dimensional reconstruction and virtual surgical techniques play an important role in assessing and surgical planning of complex tibial plateau fracture before surgery, which should be a conventional step in the management of complex tibial plateau fracture.

Adolescent ; Adult ; Aged ; Aged, 80 and over ; Carcinoma, Renal Cell ; pathology ; surgery ; Female ; Humans ; Kidney Neoplasms ; pathology ; surgery ; Male ; Middle Aged ; Neoplastic Cells, Circulating ; pathology ; Nephrectomy ; methods

OBJECTIVE To investigate the relationship between gastric polyps and Helicobacter pylori infection.METHODS The patients with gastric polyps were taken by gastroendoscopy in 2005.The tissues from their antrums were examined for presence of H.pylori.We collected and analyzed all of their general information and the data about their gastric polyps and H.pylori infection condition.RESULTS In the 95 gastric polyps patients,76 cases(80.0%) had inflammatory polyps and 19 cases(20.0%) had H.polyps.The total H.pylori infection rate was 33.7%.The H.pylori infection rate in the inflammatory polyps patients and H.pylori patients were 38.2% and 15.8%,respectively.CONCLUSIONS H.pylori infection promotes the formation of gastric inflammatory polyps.The examination and treatment for H.pylori is necessary for the gastric polyps patients.

OBJECTIVE To observe the effect of Qi Kwai Granule particles on the expression of in-terleukin 6 (IL-6), monocyte chemotactic protein 1(MCP-1) and transforming growth factor-β1(TGF-β1) in diabetic nephropathy(DN)rats and evaluate the protective effect of Qi Kwai Granule particles against renal injury of diabetic nephropathy. METHODS This experiment adopts adopted the high-sugar-high-fat diet and intraperitoneal injection of 2％ STZ+unilateral renal ligation to establish rat model of diabet-ic nephropathy.50 model rats were then randomly divided into model group,Irbesartan group,Qi Kwai Granule particles of high, medium, low dose group, 10 rats in each group. 10 normal rats were set as the sham operation group.Intragastric administration for 8 weeks were measured in rats.Measure the value of rat blood glucose by blood glucose meter,the determination of serum interleukin 6(IL-6)con-tent by ELISA, the expression of MCP-1 and TGF-β1by immunohistochemistry method. The value of rat blood glucose were measured by blood glucose meter.Serum interleukin 6(IL-6)were determinat-ed by ELISA.Expression of MCP-1 and TGF-β1were evaluated by immunohistochemistry method.RE-SULTS The blood glucose of Qi Kwai Granule particles of high,medium groups were decreased com-pared with those of the model group(P<0.05).The content of IL-6 of Qi Kwai Granule particles of high, medium groups were reduced(P<0.01). The content of MCP-1, TGF-β1in kidney of Qi Kwai Granule particles of high, medium, low dose groups were decreased (P<0.01). CONCLUSION Qi Kwai parti-cles have protective effect on renal tissue of diabetic nephropathy rats.Its mechanism might be related to the decrease of blood glucose value and IL-6,the inhibition of the expression of MCP-1 and TGF-β1.

Objective To systematically evaluate the safety of high dose atorvastatin (80 mg daily) in Chinese patients. Methods Randomized controlled trials (RCTs) investigating 80 mg/ d atorvastatin vs. low-dose atorvastatin or placebo or blank were electionically retrieved in date bases of EMbase, PubMed, the Cochrane Library, WanFang, CNKI and WeiPu. Meta-analysis was performed using RevMan 5. 2 and Stata 11. 0 software. Results A total of 20 RCTs involving 2282 cases were included. The results of meta-analysis showed no significant differences betweent the 80 mg/ d atorvastatin group and the control group in the incidence of gastrointestinal adverse events (RR 1. 53, 95% CI 0. 85-2. 76, P = 0. 16), hepatic adverse events (RR 1. 53, 95% CI 0. 99 - 2. 36, P = 0. 05), muscular adverse events (RR 1. 51, 95% CI 0. 92 -2. 49, P = 0. 10), serious hepatic injuries ( RR 2. 33,95% CI 0. 88 - 6. 20, P = 0. 09) and serious muscular myopathies (RR 1. 40, 95% CI 0. 46 - 4. 30, P = 0. 56). Subgroup analysis by type of cotrast media used and durations of taking 80 mg/ d atorvastatin showed there were higher risks of gastrointestinal adverse events in the 80 mg/ d group when compared to blank control ( RR 4. 22, 95% CI 1. 11 - 16. 04, P = 0. 03). Conclusions The current evidence shows that 80 mg / d atorvastatin may be relatively safe in terms of adverse events in gastrointestinal tract, liver and muscular system, and relatively has risk in causing severe liver injuries and myopathies. With limited quantity and quality from the RCTs available, more high quality RCTs are needed to verify the above conclusion.

Objective To explore the splenic macrophages phenotype and secretory function of mice with periodontitis, so as to explore effects of periodontitis on macrophages. Methods 22 mice were randomly divided into periodental ligation group (group P10d ) and pseudo periodental ligation control group (group C), with 11 mice in each group. The experimental periodental ligation on mice lasted for 10 days before they were sacrificed. Flow cytometry was applied to detect the expression of M1 and M2 in mononuclear macrophages. Real-time PCR was applied to detect the relative expression of pro-inflammatory cytokines IL-1β and anti inflammatory cytokines IL-10. Results Compared with the control group C, the proportion of M1 macrophages in the periodontitis group decreased, and the ratio of M1/M2 was also decreased significantly, and IL-1β mRNA also down-regulated. Conclusions Chronic periodontal infection could down regulate the proportion of M1 macrophages , decrease ratio of M1/M2 and the expression of inflammatory cytokines IL-1βmRNA.

Objective To construct an expression vector directed by hU_(6)snRNA promoter for synthesizing small RNA and to identify its functional activity in the gastric carcinoma cells——SGC-7901.Methods Using human genomic DNA as template,U_(6) snRNA promoter was obtained by PCR method,and then cloned into PUC19 vector to produce the recombinant plasmid PUC-hU_6-extra,which was sequenced and then transfected into gastric carcinoma cell——SGC-7901 with liposome.The effect of expression directed by U_6 promoter was detected by RT-PCR method,and the cell proliferation curve analysis was performed by stained dye.Results The hU_6 snRNA promoter with the first 27 nucleotides followed were successfully cloned into PUC19 plasmid.The recombinant vector could efficiently transcribe small RNA molecules and exerted no effect on cell proliferation in SGC-7901 cells in vitro.Conclusion We have successfully constructed the recombinant PUC-hU_6-extra plasmid vector that can efficiently transcribe small RNA molecules directed by hU_6 snRNA promoter in the gastric carcinoma cells——SGC-7901.

BACKGROUND:Coracoclavicular ligament reconstruction with transclavicular-transcoracoid driling is an effective surgical technique to treat acromioclavicular dislocation. A good driling in the clavicle leads to a perfect bony tunnel and a good surgery. OBJECTIVE: To observe the effects of different driling positions of the clavicle on the location of bony tunnels in coracoclavicular ligament reconstruction. METHODS:Sixty three-dimensional digital models of the clavicle and coracoid process were constructed by Mimics13.0. Virtual transclavicular-transcoracoid bony tunnels were established according to different surgical planes with different driling positions in the clavicle. Parameters of these bony tunnels were measured, and the safety was evaluated. Option 1: The driling was made 30 mm distal to the clavicle, located in the center of the front and rear edges of the clavicle surface. Option 2: The driling was made 40 mm distal to the clavicle, located in the center of the front and rear edges of the clavicle surface. Option 3: The driling was made at the straight line of tapered nodule tip and the midpoint of the base of the coracoid process, located at the rear edge of the clavicle upper surface. RESULTS AND CONCLUSION: Bony tunnels in option 1 were extremely on the inside of the coracoid. Bony tunnels in options 1 and 2 were not in the center of clavicle. Bony tunnels in option 3 were in the center of both clavicle and coracoid. The method of locating the driling position with a certain distance to the distal clavicle leads to different results in man’s and woman’s models. To ensure that the bony tunnel can pass through the center of clavicle and coracoid, it is suggested to dril at the straight line of tapered nodule tip and the midpoint of the base of the coracoid process and nearby the rear edge of the clavicle upper surface.

Objective To investigate ultrasonographic features of primary and metastatic ovarian yolk sac tumors.Methods Ultrasonographic features of 19 primary lesions and 33 metastatic lesions in 35 patients were retrospectively analyzed.Results Primary tumors were sized (14.6±3.6)cm in maximum diameter,manifesting as cysti-solid masses.Solid components of primary tumors were mainly hypoechoic or isoechoic(16/19)with rich blood supplies.Thirty-three metastatic lesions were located in pelvoceliac cavity(26/33) and liver parenchyma(7/33),sized (9.4±4.5)cm,(9.2±4.9)cm and (5.6±1.6)cm in maximum diameter respectively.Metastatic lesions in pelvoceliac lesions mainly demonstrated as hypoechoic masses(21/26), however lesions in the liver were mainly hyperechoic(5/7).Anechoic regions could be found in 9/26 of the pelvoceliac lesions.Blood supply was found less rich in metastatic masses than that in primary ones.Elevated serum level of alpha fetoprotein (AFP) was observed in all patients; ranging from 217 to 211 682 μg/L.Conclusions Primary and metastatic lesions of ovarian yolk sac tumor have obvious ultrasonographic characteristics.Combined with serum AFP level,the accuracy of diagnosis could be improved.

Objective:To study the expression of B-1a cells in mice with obesity and periodontal infection.Methods:Mouse models of diet induced obesity combined with experimental periodontitis were established,the expression of CD5 protein,anti-collagenⅠ antibody(anti-Col-Ⅰantibody) and IL-10 protein was examined in mouse jaw bone and spleen by immunohistochemistry and Western blot;The mRNA expression of CD5,anti-Col-Ⅰantibody and IL-10 in mouse jaw bone was detected by real time quantitative PCR.Results:The mRNA and protein expressions of CD5 and IL-10 and anti-Col-Ⅰantibody in jaw bone in periodontitis group were significantly higher than those in control group(P<0.001).The protein expressions of CD5 and IL-10 and anti-Col-Ⅰantibody in spleen in obesity group were significantly higher than those in standard group(P<0.05).The protein expression of anti-Col-Ⅰantibody in spleen in standard accompanying periodontal ligature group was significantly higher than that in standard without periodontal ligature group(P<0.05).Conclusion:B-1a cells are activated in the early stage of obesity and periodontal inflammation with a certain pathological significance and without interation between the two inflammatory states in the pathological mechanism.