Objective To explore factors influencing the restdts of operative treatment of unstable scapular neck fractures. Methods We reviewed 15 patients who had been diagnosed as the unstable scapular neck fracture and received operation from June 2001 to November 2007 in our department. Of them, 13 had full follow-up data, with a mean follow-up time of 45.1 (10 to 90) months. There were 8 cases of anatomic scapular neck fracture and 5 cases of surgical scapular neck fracture combined with injury to the superior shoulder suspensory complex. The shoulder posterior approach was adopted, exposing the fracture site between the in-fraspinatus and teres minors interval, to fix the scapular neck fracture along the scapular lateral border and si-multaneously fix the combined clavicle fracture, dislocation of the acromioclavicular joint and acromial process fracture. The results were evaluated by the absolute value of Constant-Murley rating system. Results The average absolute Constant-Murley score was 81.2 (40-98) points. Nine cases were evaluated as excellent and good, 2 cases as fair, and 2 cases as poor. The average forward elevation was 147.7°. Conclusions The degree of displacement is the main factor affecting the prognosis of the scapular neck fracture. Reduction and fixation of the displaced scapular neck fracture is the key to achieving good results.

Objective To observe the effect of magnetic attachments application on oral denture restoration .Methods A to-tal of 50 patients with overdenture restoration treatment in this department from April 2012 to April 2014 were enrolled .Abutment tooth were given magnetic attachments restoration after preparations .The masticatory efficiency ,patient satisfaction and post-resto-ration complication were observed and recorded .Results The immediate masticatory efficiency after magnetic attachments restora-tion (0 .65 ± 0 .09) was significant higher than that before restoration(0 .22 ± 0 .04) ,t= 20 .812 ,P< 0 .05 .After one-year′s magnetic attachments restoration ,masticatory efficiency(0 .71 ± 0 .13) was higher than that before restoration(t = 25 .060 ,P< 0 .05) .There was no statistic difference in magnetic attachments restoration between immediate masticatory efficiency and one-year masticatory efficiency(t= 0 .018 ,P> 0 .05) .There were 49 cases of immediate satisfaction and 1 case of satisfactory after restoration ,the patient satisfaction rate was 100% ,it was significant higher than that of before restoration(46% ) ,χ2 = 31 .815 ,P< 0 .05 .There were 45 ca-ses of satisfaction and 5 case of satisfactory after restoration ,the patient satisfaction rate was 100% ,it was significant higher than that of before restoration (χ2 = 31 .815 ,P< 0 .05) .Conclusion The masticatory efficiency could be improved significantly by mag-netic attachments to restore denture depletion or dentition defect ,compare with traditional denture ,it can significant shorten adapt time for patients ,and it can enhance patient satisfaction .It has wide prospect for future clinical application .

Objective To investigate the conditions of diabetes-related knowledge as well as the influencing factors in elderly people in Changchun so as to provide basis for regulation of health education policy.Method A total of 400 community elderly people in Changchun involved in the survey by questionnaire for investigating the knowledge on diabetes and the influencing factors. Results The elderly people in the community in Chuangchun knew much better about the typical symptoms,diet and treatment by 74.0%,80.8%and 75.8%,respectively,but they knew little about the causes of the disease and complications by 52.7%and 25.7%respectively.The factors influencing their acquisition of diabetes related knowledge included education level,income and disease condition.Conclusions The elderly people in the communities lack diabetic knowledge,which is unbeneficial for the prevention and control of diabetes.Therefore,it is a need to strengthen diabetes-related knowledge education in order to prevent and reduce the complications.

Objective: To determine glycyrrhizic acid content in Gankang Granules by HPLC.Methods: HPLC analysis was carried out with C 18 column and methanol acetic acid water (65∶5∶30) as the mobile phase. The detection wavelength was 250nm.Results: The linear range was 9.78～58.68 ?g( r=0.9999 n=6) . The average recovery was 98.40%, RSD was 0.88%. Conclusion: The method is simple, reliable and sensitive. It can be used in quality control of Gankang Granules.

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BACKGROUND:The siphon of internal carotid artery is a complex of bending and surrounding structure, which has become a research hot in the field of medical imaging and regional anatomy. There is little research on the hemodynamics of internal carotid artery. Finite element analysis provides the basis for the related dynamics research. OBJECTIVE:To explicit the hemodynamic characteristics of the normal and stenosis internal carotid artery, and to explore the relevant influential factors. METHODS:Finite element model of the siphon of internal carotid artery was built based on 64-slice spiral CT data, and then, three-dimensional models were constructed using Mimics 10.01 software. There were simulations of the normal and post-stenosis blood flows with ANSYS 13.0 CFX software, to observe the changes of hemodynamics, and to analyze their characteristics and differences. RESULTS AND CONCLUSION:The normal blood flow at the siphon of internal carotid artery was in a laminar state, but rotation and turbulent flow formed at the two angle regions. The velocity of external bending zone was slower than that of the internal. The slower was the velocity, the more obvious was the turbulence. The wal shear force decreased at the angle regions, and the wal shear force of external bending zone was smal er than that of the internal. At the region of arterial stenosis, the blood flow was sped, and at the downstream, turbulent flow and low zone of wal shear force were formed. With the increase of stenosis severity, the turbulent flow and low wal shear force area were expanded. Central stenosis showed more obvious effects than the eccentric one. The degree of stenosis and bending at the siphon of internal carotid artery can directly influence the formation of turbulent flow and low wal shear force area, which are more obvious at the external bending zone and central stenosis.

Objective To explore the interventional treatment method for complex and refractory lymphatic malformation in children.Methods The clinical data of 78 cases with complex and refractory lymphatic malformation during January 2013 to January 2016 in our department were retrospectively analyzed.The lesions involved the neck in 28 cases,maxillofacial regions in 19 cases,the chest and armpit in 8 cases,the limb in 7 cases,the pelvic cavity and retroperitoneal space in 6 cases,the superior mediastinum in 3 cases,the hypogloeeis in 3 cases and scrotum or perineum region in 4 cases.All the children underwent ultrasound or MRI imaging studies preoperatively.The interventional procedures included:(1) Percutaneous puncture of the LM for sclerotherapy.The lesions were punctured with 20 G needle under the guidance of DSA or ultrasound and the correct positions were confirmed with angiography.The liquid of the lesions was extracted as far as possible.The dosage of sclerosing agents was adjusted according to the size of lesion.The dose of Laurolacrogol injection was 1/10—1/5 of the amount of the liquid in the lesions and the maximum of Laurolacrogol foam was ≤8 ml(20 mg).The dose of Pingyangmycin was ≤ 8 mg.(2) The drainage catheter placement and sclerotherapy.Percutaneous catheter drainage under ultrasound guidance or by surgery was conducted.The liquid in the lesions was drained by retaining the catheter for 1-4 weeks,and sclerotherapy was applied for several sessions during this period.(3) Treatment for one time a week,2 times a session.The interval of every two sessions was 4 weeks.The sclerosing agents included:Laurolacrogol Injection or Pingyangmycin for the lesions with high tension,Laurolacrogol foam for the lesions with low tension,Pingyangmycin for the microcystic lesions.Statistical analysis was conducted using SPSS20.0 software.Results A total of 208 sessions of sclerotherapy for 78 LM patients were performed and average session was (3.0±0.8).Nine patients used Lauromacrogol foam,23 patients used Lauromacrogol Injection,39 patients used pingyangmycin,while combined treatment was conducted in 7 patients.Laurolacrogol injection was used in 20 cases,Pingyangmycin in 29 cases and combination therapy in 5 cases for the high tension lesions in the neck,maxillofacial,chest and armpit.The low tension lesions of pelvic cavity and retroperitoneal space in 6 cases and of superior mediastinum in 3 cases were placed with draining catheters,and treated with sclerotherapy with Laurolacrogol foam.Three cases with hypogloeeis LM was neonates,who were treated with Laurolacrogol injection.The lesions on the limb and scrotum or perineum region were almost microcystic,were treated with Pingyangmycin in 9 cases and with combination therapy in 2 cases.The total curative rate was 97.4％ (76/78),total effective rate was 100％ (78/78).Imaging examinations showed that the cavities were closed or only a small amount of residual sclerotic lesions were present.Clinical examinations showed that the surface masses almost disappeared.The follow up period was 6 months to 2 years.There were no serious complication and adverse reactions occurred.Conclusions Interventional treatment is a safe,effective,and minimally invasive treatment for the complex and refractory lymphatic malformation.In order to receive the best treatment effect,we should use targeted therapy for different region and type of LM.

Objective To explore the value of quantitive tissue velocity imaging(QTVI) in assessing the systolic myocardial function of adriamycin cardiomyopathy.Methods Conventional echocardiography and QTVI were performed in 7 rabbit models with adriamycin cardiomyopathy and 5 health rabbits as control.The basic segments of interventricular septum of apical 4-chamber view and left ventricular post wall of parastenal left ventricular long axis view were sampled to measure maximal velocity(VIVS,VLVPW),displacement(DIVS,DLVPW),strain rate(SRIVS) and strain(?IVS) in systole.Pre-eject period(PEP) and ratio of pre-eject period and eject time(PEP/ET) were measured with electrocardiography and Doppler spectrums of mitrial and aortic orifices.Results Compared with control,VIVS,DIVS,SRIVS,?IVS and VLVPW,DLVPW decreased(P0.05).Conclusions The indices of QTVI are more sensitive to evaluate systolic function changes than EF,and QTVI may be an optimal method to early diagnose and access of adriamycin cardiomyopathy.

Objective To detect viable myocardium in patients with old myocardial infarction(OMI) by using quantitative tissue velocity imaging(QTVI) in low dose dobutamine stress test(LDDSE).Methods(Twenty-five) patients with OMI were accepted QTVI examination including 2-chamber,4-chamber apical view.QTVI indices included peak velocity in isovolumic contraction(V_(IVC)),peak velocity in systolic(V_S) and time of isovolumic contraction(T_(IVC)).Results Two hundred segments were divided into the normal(group N,72 segments),viable myocardium(group V,77 segments) and non-viable myocardium(group NV,51 segments).At baseline,compared with group N,V_(IVC),V_S of group V and group NV decreased significantly(P