Objective To probe into the anatomy and clinical application of the facial nerve canal surface by multislice spiral CT image curved planar reformation. Methods Fifty patients with facial nerve disease were selected as study group from January to November in 2010, 50 healthy subjects were selected as control group, using models of multislice spiral CT scan for the patient, scanning from the upper edge of the orbital under external auditory canal edge of the connection as a horizontal line, ranging from the lower edge of mastoid process to the petrous bone on the edge of the data obtained in the Wizard workstation reconstruction. All the measurements were more than two measurements of the average physician. Results Normal facial nerve canal in control group could be displayed clearly in an image, display rate was 100.00%(50/50), and the segment data could be accurately measured; axial reconstruction, reconstruction of coronal and sagittal reconstruction of the three comparison of measured direction, fan sections, horizontal and vertical segments of the length and diameter were not significantly different (P＞0.05), and the first and second bending angle of bending angle was no significant difference (P ＞ 0.05 ). Compared with control group, the patients with vascular disease in study group showed significantly decreased rate, the difference was significant (P ＜ 0.05). Conclusion Curved planar reformation of multislice spiral CT diagnosis of facial nerve canal disease has great clinical significance, should be widely applied.

BACKGROUND: Tissue engineering plays an important role in treating rotator cuff injury. Promoting the healing of injured rotator cuff and preventing adhesion by regulating growth factor expression are main functions. OBJECTIVE:To compare the effects of corticosteroids and hyaluronic acid on the expressions of epidermal growth factor (EGF),platelet-derived growth factor (PDGF),transforming growth factor ? (TGF-?) and basic fibroblast growth factor (bFGF) in injured rotator cuff. DESIGN,TIME AND SETTING: The randomized controlled animal experiment was performed at the Animal Experimental Center,School of Medicine,Shanghai Jiao Tong University from July to September 2007. MATERIALS: Totally thirty-six Sprague-Dawley (SD) rats were randomly assigned into four groups: normal group (n=6),rotator cuff injury group (n=6),hyaluronic acid group (n=12) and corticosteroids group (n=12). METHODS: Full-thickness defects across 50% of the total width (5 mm) of the bilateral infraspinatus tendon were excised. Models of rotator cuff injury were created at the synovium. 0.05 mL hyaluronic acid was injected into the subacromial bursa mucosa in the hyaluronic acid group,whereas 0.05 mL corticosteroids in the corticosteroids group. MAIN OUTCOME MEASURES: At three and six weeks after injury,the infraspinatus were harvested to detect EGF,PDGF,TGF-? and BFGF by reverse transcription-polymerase chain reaction (RT-PCR). RESULTS: By using corticosteroids treatment,the expression of EGF remained greater at the six weeks than twofold at the three weeks; the expression of EGF after hyaluronic acid treatment greatly decreased at six weeks (P

Objective To observe the treatment effect of minimally invasive surgery on bone defects. Methods Bone defect model was established in bilateral shaft of radius in 30 rabbits. Forefoots of each rabbit were then randomized into open grafting group(group A) and minimally invasive grafting group(group B). Minimally invasive bone grafting was performed in group B with self-made instruments. DEXA and electron microscopy were investigated in radial bone defect after six rabbits were sacrificed randomly at different time after bone grafting. Results DEXA showed bone density increased gradually in both groups, the bone density in minimally invasive group was higher than that in open group with significant difference(P

BACKGROUND: Traditional anterior release followed by posterior correction and fusion is frequently used to treat severe and rigid adolescent idiopathic scoliosis, which is considered as Cobb angle of the major curve > 65° and flexibility < 34.5%; however, there are a great majority of complications. Whether isolated posterior correction using pedicle screw fixation combining with bone grafting and fusion may provide better effects on severe and rigid adolescent idiopathic scoliosis needs to be further studied.OBJECTIVE: To evaluate isolated posterior correction using pedicle screw fixation combining with bone grafting and fusion for the treatment of severe and rigid adolescent idiopathic scoliosis. DESIGN: Case analysis.SETTING: Department of Orthopaedics, Renji Hospital, Medical College of Shanghai Jiao Tong University.PARTICIPANTS: Twenty patients with severe and rigid adolescent idiopathic scoliosis, including 8 males and 12 females, were selected from Department of Orthopaedics, Renji Hospital, Medical College of Shanghai Jiaotong University from June 1999 to August 2005. They were 12-18 years old, and the mean age was 14.6 years. All patients were finally diagnosed as X-ray of whole spine. According to King-Moe criteria, patients were classified into type Ⅰ(n =4), type Ⅱ(n =6), type Ⅲ (n =5), type Ⅳ(n =3) and type Ⅴ(n =2). Before surgery, mean Cobb angle of the major curve was 82° (75°-92°), mean flexibility was 30% (20%-40%), and mean shoulder height difference was 15 mm (5-35 mm). Moreover, according to Risser syndrome, patients were classified into degree 1 (n =3), degree 2 (n =5), degree 3 (n =6), degree 4 (n =5) and degree 5 (n =1). All patients and their relatives provided the informed consents, and the experiment was approved by the local ethical committee. Artificial bone was Osteoset provided by Wright Company, USA.METHODS: Patients underwent isolated posterior correction using pedicle screw fixation combining with bone grafting and fusion, and spinous process, lamina of vertebra, zygapophysial joints and transverse process were exposed in a preconcerted fusion area. Pedicle screw was inserted into strategy vertebra using free hand technique according to the anatomic landmark of entry point. Six patients underwent fixation with TSRH system, and the other patients with CDH M8 system. Operative time and blood loss were evaluated after surgery. At 7 days after operation, Cobb angle was measured with X-ray, and correction rate of major curve was calculated. While shoulder height difference and admission duration were evaluated simultaneously. Complications and recovery states were followed up in the next 4 years.MAIN OUTCOME MEASURES: ① Operative time and blood loss; ② Cobb angle and correction rate of major curve; ③ shoulder height difference and admission duration; ④ follow-up results.RESULTS: All 20 patients were included in the final analysis. ① Operative time and blood loss: Operative time lasted from 3.2 to 4.3 hours, and the mean time was 3.5 hours. Blood loss ranged from 660 to 1 070 mL, and the mean loss was 865 mL. ② Cobb angle and correction rate of major curve: Cobb angle of the major curve ranged from 82° (75°-92°) before surgery to 31° (22°-37°) after surgery, and the mean correction rate was 62%. ③ Shoulder height difference and admission duration: Mean should height difference before surgery was 15 mm (5-35 mm). Postoperative lateral film of spine indicated that thoracic and lumbar vertebra generally suffered from normal posterior and anterior convexity, and mean shoulder height difference after surgery was 7.5 mm (0-11 mm). The admission duration lasted from 8 to 11 days, and the mean duration was 9 days. ④ Follow-up results: All patients were followed up in the next 4 years after surgery. The cobb angle correction of major curve remained unchanged, and the instrumented segments were completely fused without instrumentation failure.CONCLUSION: Isolated posterior correction using pedicle screw fixation combining with bone grafting and fusion may effectively cure severe and rigid adolescent idiopathic scoliosis, which is considered as Cobb angle of the major curve between 75° and 92° and flexibility ≥ 20%.

Objective To explore oral contrast-enhanced ultrasonography findings in superior mesenteric artery syndrome (SMAS).Methods Twenty-nine patients with SMAS were examined using oral contrast-enhanced ultrasonography,which was confirmed by contrast-enhanced spiral computerized tomography.Results Abdominal ultrasonography with oral contrast-enhanced ultrasonography revealed a significant reduction of the SMA angle and diminished SMA-aorta distance in 29 subjects.Duodenum was showed the indentation and funnel shaped or dumbbell shaped findings which was caused by pressure of the SMA in patients with recumbent position.The proximal part of duodenum expanded distinctively with contrast media movement fro.Ultrasonography and CT examinations had a good agreement in diagnosing pathological aortomesenteric angle and distance.Conclusions Oral contrast-enhanced ultrasonography presents characteristic findings in patients with SMAS,which is useful in epidemiological screening of suspicious cases of SMAS in children.

Objective To study the relationship between apolipoprotein AI (ApoAI) gene rs12721026 polymorphism and cerebral hemorrhage.Methods One hundred and eighty patents with cerebral hemorrhage,admitted to our hospital from May 2014 to June 2015,were enrolled as ICH group,and 100 normal subjects were chosen as control group.ApoAI gene polymorphisms and related serum lipid parameters of the patients between the two groups were compared.Results The frequency of ApoA I gene polymorphism rs 12721026 alleles G and T in the ICH group showed no significant difference as compared with that in the control group (P＞0.05).The total cholesterol (TC) and triglyceride (TG) levels in the ICH group were significantly higher than those in the control group (P＜0.05),and high density lipoprotein cholesterol (HDL-C) level in the ICH group was significantly lower than that in the control group (P＜0.05);There was no statistically significant difference on the low density lipoprotein cholesterol (LDL-C),ApoAI and lipopolysaccharide (Lp) levels between the ICH group and control group (P＞0.05).In the ICH group,the TC,TG,LDL-C,ApoAI and Lp levels showed no significant difference between TT and GG/TG rs12721026 genotypes (P＞0.05);HDL-C level ofTT genotype was significantly lower than that of GG/TG genotype (P＜0.05).Conclusion ApoAI gene rs12721026 polymorphism shows no obvious role in the pathogenesis of cerebral hemorrhage,but may be associated with reduced HDL-C level.

Objective To investigate the safety and efficiency of robot-assisted partial nephrectomy (RAPN) for totally intrarenal tumors (TITs).Methods Thirty-eight patients who underwent RAPN for treating TITs by one experienced surgeon were included between August 2012 and December 2017.There were 25 males and 13 females,aged 26-72 years(mean 51.6 years).Tumors of 24 cases were in right kidney,and 14 cases in left kidney.The diameter of tumor was(3.12 ± 0.92) cm,the R.E.N.A.L.score was(9.76 ± 1.00),and the Scr was (74.82 ± 20.32) μmol/L.Patients' peri-operative and oncological outcomes were analyzed.Results All the tumors were successfully resected without conversion to open surgery or radical nephrectomy.Mean operative time and ischemia time were (188.47 ± 46.75) min and (24.32 ± 7.69) min.Mean blood loss was (115.79 ± 43.66) rrd.One-week postoperative Scr was (85.97 ± 28.33) μmol/L.Postoperative hemorrhage was successfully treated by DSA or drug therapy in 3 patients.The pathological examination showed 28 clear cell renal cell carcinomas,3 chromophobe renal cell carcinomas,3 TFE-3 infusion related renal cell carcinomas,2 metanephric adenomas,1 acidophile adenoma and 2 angioleiomyolipomas.One positive surgical margin occurred in RAPN group for cystic components.No evidence of tumor progression observed during follow-up.Conclusions RAPN is safe and effective in treating TITs when performed by an experienced surgeon at a high-volume institution.Further prospective and large-scale study was warranted to evaluate the long-term outcomes.

For the purpose of thrombocytopenia gene therapy, recombinant RevTet-On and pRevTRE/TPO retrovirus were packaged and transfected to NIH3T3 after selected with G418 and hygromycin, the two inserting recombinant retrovirus cell strain RevTet-On3T3/TPO were established. TPO expression was controlled and regulated by doxycydine (Dox). After using Dox to control the expression of TPO in RevTet-On3T3/TPO cells, the result showed that when Dox is added to the RevTet-On3T3/TPO cells, cell populations expressed TPO highly in the presence of 2 mg/L of Dox, and lowly in the absence of Dox. By using the RevTet-On gene expression system (the retrovirus vector RevTet-On regulation system to control the expression gene by Dox), it could modulate the expression of multiple genes by tetracyline and its derivatives. This system maybe provides a safe and efficacient way for the thrombocy to penia gene therapy.

Objective To compare the operative-postoperative outcomes of laparoscopic and robotassisted partial nephrectomy (LPN and RAPN) for patients with T1 b renal masses.Methods A total of 169 T1 b renal mass patients receiving LPN (n =69) or RAPN (n =100) in our center between October 2009 and October 2017 were retrospectively collected.There were 46 males and 23 females in LPN group,with a mean age of (55.0 ± 11.9) years.The mean tumor size was (5.09 ± 0.76) cm,and mean R.E.N.A.L score was 6.36 ± 1.53.49 procedures (71％) were performed via a retroperitoneal approach in LPN group.There were 59 males and 41 females in RAPN group with a mean age of (52.9 ± 11.7) years.The mean tumor size was(4.95 ±0.66) cm,and mean R.E.N.A.L score was 8.17 ± 1.50.31 procedures (31％)were performed via a retroperitoneal approach in RAPN group.There was statistical significance between two groups in R.E.N.A.L score and surgery approach (P ＜ 0.001).The group covariates were balanced through propensity score matching (PSM) using 1∶ 1 nearest neighbor matching method.After PSM,operating time,estimated blood loss,warm ischemia time,incidence of complications,hospital stay and postoperative follow-up status were compared between LPN(n =36)and RAPN(n =36)group.Results After PSM,patient distributions were closely balanced.In the LPN vs the RAPN group,there were significant different in warm ischemia time [(23.9 ± 7.3) min vs.(20.4 ± 6.7) min,P ＜ 0.05],estimated blood loss [(136.9 ± 80.2) ml vs.(136.9 ± 80.2) ml,P ＜ 0.05],incidence of complications (8.7％ vs.1.0％,P ＜0.05),and hospital stay [(11.5 ±3.8)d vs.(9.8 ± 1.80)d].There was no significant differences resulted regarding operating time [(164.5 ± 64.4) min vs.(169.0 ± 42.5) min,P ＞ 0.05],variation of estimated glomerular filtration rate from baseline [(9.97 ± 8.98)％ vs.(9.27 ± 9.19)％,P ＞ 0.05],positive surgical margin rate (1.4％ vs.0,P ＞ 0.05) and rate of recurrence or metastasis (1.4％ vs.1.4％,P ＞ 0.05) between groups.Conclusion Considering operative,functional and oncologic outcomes,both RAPN and LPN performed by an experienced surgeon were acceptable for patients with T1b renal masses.If available,robotic approach may reduce operative trauma and complications.

Objective:To investigate the associations between small diffusion-weighted imaging (DWI) hyperintensities lesions and total cerebral small vessel disease (cSVD) burden and the influence on prognosis in patients with acute intracerebral hemorrhage (ICH).Methods:Consecutive patients with acute spontaneous ICH from January 2018 to June 2021 were recruited in the Stroke Center of Zhengzhou People′s Hospital. Magnetic resonance imaging was performed to quantify DWI hyperintensities lesions and cSVD imaging markers, including white matter hyperintensities, enlarged perivascular spaces, lacunes and cerebral microbleeds, which were calculated for the total cSVD burden (0-4 points). The prognosis was assessed with the modified Rankin Scale (mRS) at discharge and 90-day. Multivariable Logistic regression models were adopted to explore the associations between DWI lesions and total cSVD burden and clinical outcome.Results:Of 283 included patients, 59 (20.8%) had small DWI lesions, 32 (11.3%) had multiple lesions. They were mostly punctate, mainly located in the cortical and subcortical regions, and scattered in multiple vascular territories. With the increase of cSVD burden, the number of DWI lesions gradually increased. Spearman correlation analysis showed that the total cSVD burden was positively correlated with the number of DWI lesions ( r=0.21, P<0.001). In multivariable regression analyses, the total cSVD burden was independently associated with DWI lesions ( OR=1.63, 95% CI 1.23-2.15, P=0.001). The 90-day poor outcome (mRS scores≥4) in patients with DWI lesions was significantly higher than those without DWI lesions (39.3% vs 16.3%, χ 2=14.38, P<0.001), while there was no statistically significant difference in the poor outcome of discharge between the two groups (26.5% vs 17.7%, χ 2=3.06, P=0.080). With the increase in the number of DWI lesions, the 90-day poor outcome increased significantly (trend chi-squared test χ 2=11.50, P=0.001). Multivariable analyses showed that DWI lesions ( OR=4.39, 95% CI 1.92-10.03, P<0.001) and their number ( OR=1.42, 95% CI 1.06-1.90, P=0.018) were independently associated with the 90-day poor outcome. Conclusions:Higher total cSVD burden is an independent risk factor for small DWI lesions in patients with ICH. Small DWI lesions were independently associated with the 90-day poor outcome, but not with the discharge outcome.