Objective To evaluate bile duct drainage with ureteral catheter through cystic duct in laparoscopic common bile duct exploration followed by primary duct closure (LCBDEPDC) and posto laparoscopic endoscopic stone extraction treatment of extrahepatic bile duct stones.Methods The clinical data of 116 cases of extrahepatic bile duct stones were retrospectively analyzed.Patients were divided into 2 groups: 57 patients with dilated common bile duct were in group A treated with laparoscopic common bile duct exploration followed by primary duct closure and via cystic duct ureteral catheter biliary drainage.While in group B (59 patients) with normal calibre of the common bile duct, the procedures was laparoscopic cholecystectomy + via cystic duct ureteral catheter biliary drainage and postoperative endoscopic stone extraction.Results Procedures were successful in both the two groups.There was no postoperative pancreatitis and biliary leakage complications.The catheter was withdrawn in 6-9 d in group A postoperative hospitalization time was (8.5 ± 2) d.The catheter was withdrawn in 2-8 d in group B after endoscopic stone extraction.Postoperative hospitalization time was (7.6 ± 3) d.No complications occurred in both two groups relating extubation.Conclusions Bile duct drainage using the ureteral catheter via cyst duct after LCBDEPDC and endoscopic stone extraction treatment of extrahepatic bile duct stones effectively prevent postoperative pancreatitis, biliary leakage and bile duct stricture.

Objective To assess the clinical outcomes in patients who underwent laparoscopic primary closure of common bile duct (CBD) with or without transcystic cholangiography and transcystic biliary drainage.Methods From June 2013 to March 2016,we operated on 46 patients who underwent primary closure of common bile duct after laparoscopic choledochotomy (group A).The results were compared with 51 patients who underwent primary closure of common bile duct after laparoscopic choledochotomy together with transcystic biliary drainage (group B) during the same study period.Results There was a significant difference in the incidence of postoperative bile leakage between the two groups.The risk in group A was sig nificantly higher than group B (8.7％ vs 0％,P ＜0.05).The duration of operation in group A was significantly shorter than in group B [(125.3 ± 28.3) min vs (131.3 ± 20.5) min].There were no significant differences in the duration of hospital stay between the two groups [(7.3 ± 2.4) days vs (7.8 ± 1.9) days,P ＞ 0.05].All patients were followed up (range 3 months to 29 months,average 8.4 months).B-ultrasound examination showed no residual bile duct stones and the liver functions were normal.Conclusions Laparoscopic primary closure of common bile duct was possible after choledochotomy.Transcystic cholangiography and transcystic biliary drainage after primary closure of common bile duct were safer and more reli able.

Objective To observe the effect of Yun-Pi Prescription in different dose on small intestinal function of splenic asthenia rats, so as to explore mechanisms of Yun-pi Prescription in treatment of children apositia. Methods Experimental rats were randomly divided in to six groups:the control group, the model group, the positive control group (Xiao shi Jian er Syrup group), Yun-Pi Prescription in high, middle and low dose group. Measure the changes of body weight and food intake, observe excretory rate of D-xylose of rats. Results Yun-Pi Prescription could increase body weight and food intake, improve excretory rate of D-xylose in splenic asthenia rats. Conclusion Yun-Pi Prescription could improve the small intestinal absorptive function of splenic asthenia rats with dose-effect relationship.

Objective To investigate the effectiveness and safety of the slender external biliary drainage tube (F5 ureter catheter) inserted into the common bile duct via the cystic duct in laparoscopic choledochotomy with primary closure.Methods Clinical data of 59 patients with cholecystolithiasis and choledocholithiasis treated in our hospital between Feburary 2013 and March 2016 were retrospectively analyzed.The patients were treated with laparoscopic common bile duct exploration followed by primary duct closure,and bile duct drainage with a slender catheter through cystic duct after closure of the choledochotomy.Results All the cases underwent surgery successfully.The postoperative output of bile drainage was 30-570 ml/d.There were no complications such as biliary leakage,cholangitis or biliary pancreatitis.The catheter was withdrawn in 6-8 d in 57 patients after the operation,and was withdrawn in 10-11 d in 2 patients after the operation.There was no discomfort after removing the catheter.Postoperative hospitalization time was (9.1 ± 2.0) d.All patients were followed up for 5 months to 3 years,with an average of 16 months.The B ultrasound examinations showed no residual bile duct stones and liver functions were normal.Conclusions External biliary drainage using a slender ureter catheter via the cystic duct is safe,effective and easy to perform.It may reduce postoperative potential complications,especially bile leakage.

Objective To evaluate the value of bile duct drainage using ureter catheter through cystic duct remnant with primary closure of the common bile duct(CBD) incision after CBD exploration.Methods (Retrospective) analysis of the clinical data of 218 cases using this method. Results All cases were operated on successfully.There were no complications such as bile leakage,bile duct stricture in this series.The (catheter) were removed 5-7 days after operation in 215 cases,10 days after operation in 3.None of the 218 cases had complications after removal of the catheter.The rate of stone clearance was 99.7%(217/218).Average hospitalization time after operation was(6.5?3.0)days.All the 218 cases were followed up for 1-5 years.On ultrosounography no bile duct stricture was found in the followed up cases.Conclusions (Using) ureteral catheter through cystic duct remnant for drainage of bile duct after CBD exploration with primary closure of the CBD is an effctive,reliable and safe method in preventing postoperative bile leakage,bile duct stricture and diagnosis of the postoperative retention of bile duct stones.

Objective To compare the clinical outcomes between two different femur rotating osteotomy methods for kneeling ability recovery after total knee arthroplasty (TKA).Methods From January 2012 to December 2014,88 patients underwent TKA were selected for a retrospective study and were divided into two groups based on the methods to determine femoral rotation.Forty-eight patients were in measured resection group,while 40 patients in gap balancing group.The patients in both groups underwent fixed-bearing tibia prosthesis.There were no statistical significance between the two groups in gender,age,BMI and knee varus angle (P＞0.05).The knee varus angle,ROM,Oxford knee score (OKS) and American Knee Society (KSS) knee score were collected to assess malformation correction,kneeling ability and functions at pre-operation,one and two years postoperatively.Results The operation duration and blood loss in measured resection group were 80±19 min and 348±121 ml,while these data in gap balancing group were 82±23 min and 315 ± 100 ml respectively (P＞0.05).Patients in measured resection group were followed up 24-59 months (mean 43± 11 months),while the followed-up duration in gap balancing group was 25-58 months (mean 47±10 months).No major complications such as infection loosen and instability were occurred.Varus angles in measured resection group at postoperative 1 year and 2 year postoperative were 1.2°±0.4° and 1.0°±0.2° respectively,while those in gap balancing group were 0.9°±0.2° and 0.8°±0.3° (P＞0.05).The scores of the seventh item of OKS in measured resection group at 1 year and 2year follow-ups were 2.79±1.02 and 2.75± 1.03 respectively,while those in the gap balancing group were 1.90±0.85 and 1.80±0.83 (P＜0.01).ROM in the measured resection group at 1 year and 2 year postoperative were 102.08°± 15.60° and 102.08°±15.60° respectively,while those in the gap balancing group were 112.50°±18.32° and 113.00°±18.09° (P＜0.05).KSS in measured resection group at postoperative 1 year and 2 years were 154.63±31.12 and 154.63±31.26 respectively,while those in the gap balancing group were 170.55±22.67 and 173.45±22.52 (P＜0.05).Conclusion The method of measured resection and gap balancing to confirm femoral rotation during TKA can both achieve favorable kneeling ability and clinical outcomes,while gap balancing show superiority on kneeling ability recovery,ROM and clinical outcomes at 2-year postoperative improvement.

AIM:To explore an ideal method to induce the differen-tiation of human umbilical cord mesenchy-mal stem cells (hUCMSCs) into neuron-like cells and to provide some evidence for the transplantation of hUCMSCs for spi-nal cord injury .METHODS:The hUCMSCs were isolated from human umbilical cord digested with collagenase Ⅱ.The hUCMSCs was verified by flow cytometry analysis .The passage 5 cells were randomly divided into 4 groups.The differentiation of hUCMSCs was induced by bFGF in group A , bFGF and BDNF in group B, or BHA, bFGF and BDNF in group C, while the cells in group D served as a control group cultured with DMEM-F12 and 10%FBS.Two weeks later , the expression of nestin , neurofilament protein H ( NEFH) and glial fibrillary acidic protein ( GFAP) was detected by real-time PCR and immunocytochemistry .The morphological changes of cells were observed under an atomic force microscope . RESULTS:Mesenchymal stem cells were isolated and cultured from human umbilical cord by enzyme digestion .hUCMSCs expressed CD29, CD44 and CD105, but no CD34, CD45 or HLA-DR.After cultured with inducing medium for 2 weeks, the cells were successfully induced into neuron-like cells.The appearance of the cells had great change .The induced hUC-MSCs developed round cell bodies with multiple neurite-like extensions observed under an atomic force microscope .The re-sult of real-time PCR showed that nestin was positive in A , B and C groups , and NEFH was positive in A and B groups , but GFAP was negative in 4 groups.The difference of nestin and NEFH expression among the induced groups was signifi -cant (P<0.05).CONCLUSION:Mesenchymal stem cells were isolated and cultured from human umbilical cord by en-zyme digestion in vitro, and all the hUCMACs presented stable biological properties .Moreover, hUCMSCs were induced to differentiate into neuron-like cells in vitro via bFGF combined with BDNF .

Objective To assess and review the methods of the reversed posterior interosseous artery flap for treating the contracture of the first web space. Methods Forty-two cases of the first web space severe contracture were cured by the reversed posterior interosseous artery flap rotate at 1.5-2.0 cm proximal ulnar styloid process after release the adhesion. After operation curative effects were evaluated by measuring the first web space with Gu's method. Results The flap of 42 cases obtain success, however 3 cases was partly necrosis of epidermis. Follow-up examination was obtained in 31 cases for average 18 months after operative.The width of the first web space was augmented an average of 37.9 mm. Rehabilitation training after operation can enhance the effect of the therapy with 8.6 mm more expanded. Conclusion The flap is an ideal choice for treatment on the defect of the contracture of the first web space and rehabilitation training after operation is important.

Objective: To explore the clinical value of non-invasive monitoring of cerebral hemodynamics for evaluating intracranial pressure (ICP) and cerebral perfusion pressure (CPP) in patients with moderate to severe traumatic brain injury (TBI). Methods: Transcranial Doppler (TCD) was employed to detect the hemodynamics of bilateral middle cerebral arteries, including systolic blood fl ow velocity (Vp), diastolic blood fl ow velocity (Vd), average fl ow velocity (Vm), pulsatility index (PI) and resistance index (RI) in 52 patients with moderate to severe TBI. At the same time, the CPP, ICP and mean arterial blood pressure (MABP) were monitored. The correlations between hemodynamics and MABP, ICP as well as CPP were analyzed. Results: The PI and RI were positively related to the ICP (r=0.881, P<0.0001; r=0.789, P<0.0001). Multiple stepwise regression analysis showed PI was closely associated with ICP (ICP=-8.593+24.295PI; t=13.216, P<0.0001) and signifi cant correlation was also found between CPP and PI as well as MABP (CPP=15.596-22.886PI+0.910MABP; F= 76.597, P<0.0001). Conclusion: Non-invasive monitoring of cerebral hemodynamics by TCD can refl ect the real time changes in the ICP and CPP and may be used as an effective tool to monitor the ICP and CPP. This method is non-invasive, safe, cheap, repeatable and applicable in clinical practice.