Objective To investigate the clinical value of the intervertebral disc morphous in patients with thoracolumbar vertebral compression fracture. Methods The MRI, X-ray and CT data of 75 patients with thoracolumbar vertebral compression fracture were retrospectively analyzed. The intervertebral disc damage degree was observed, and its correlation with vertebral fracture degree and endplate damage degree was studied. The vertebral body leading edge height, intervertebral space height and back convex Cobb angle in patients with different intervertebral disc damage degree were measured. Results The intervertebral disc damage degree height was positively correlated with endplate damage degree (P<0.01), and the intervertebral disc damage degree was positively correlated with fracture degree (P<0.01). With the increase of the intervertebral disc damage degree in patients with Ⅰ - Ⅳtype intervertebral disc damage, the vertebral body leading edge height and intervertebral space height gradually became smaller: (0.68 ± 0.05), (0.61 ± 0.03), (0.58 ± 0.03), (0.42 ± 0.05) mm, and (0.31 ± 0.06), (0.29 ± 0.03), (0.24 ± 0.06), (0.22 ± 0.02) mm, and there were statistical differences (P<0.05). There was no statistical difference in back convex Cobb angle in patients with different intervertebral disc damage degree (P>0.05). Conclusions It is more important to observe the morphological changes of the intervertebral disc in patients with thoracolumbar vertebral compression fracture, and the damage degree is closely related with the vertebral fracture degree and endplate damage degree.

Objective Detecting the influence of swainsonine bring in the expression of N?glycan of osteosarcoma tumor stem cells. Methods LM8 cells were cultured in the culture medium (free of serum), then selected the LM8 cells of both CD44 and CD133 positive by magnetic activated cell sorting technique. Detecting the levels ofβ1, 6 branch N?glycan expression in the selected LM8 cells (treating by different doses of N?glycosylation inhibitor swainsonine) surface through the lectin binding assay (L?PHA). Results (96.5 ± 1.2)%of LM8 cells were both CD133 and CD44 positive which selected from all the LM8 cells in culture medium (free of serum) by magnetic activated cell sorting technique. Lectin binding assays shown that the bound rare of osteosarcoma tumor stem cells and L?PHA was (90.3 ± 2.1)%, which was higher than normal LM8 cells and L?PHA by (54.3 ± 3.1)%(P<0.05). The positive rare ofβ1, 6 branch N?glycan on the selected LM8 cells(treat with 1mg/mL swainsonine) surface was 90%. The positive rare of β1, 6 branch N?glycan on the selected LM8 cells (treat with 5mg/mL swainsonine) surface was 21%. Conclusion N?glycosylation inhibitor swainsonine plays a role in inhibiting the expression of N?glycan on cell surface of osteosarcoma tumor stem cell.

Objective To explore nursing of the patients with acute myelogenous leukemia after upper abdominal cluster transplantation.Methods From March 2009 to August 2012,eight cases of upper abdominal organ cluster transplantation were performed in our center,among whom one suffered from acute myelogenous leukemia after operation.We summarized the clinical data and nursing methods of this case.Results The leukocytes,erythrocytes and platetets decreased 22 days after transplantation and the decreasing continued for more than four months.Four bone marrow biopsies were performed.During the first two biopsies,no definite cause of the blood cells decreasing was found,while the outcome of the third time showed that it was type M3 acute myeloid leukemia and genetic testing at the fourth time showed AML1/E-TO was positive.After diagnosis,the patient was shifted to the Department of Hematology and underwent further treatment.Conclusions Close observation,timely diagnosis and treatment,prevention of infection,bleeding and psychological nursing are the keys to promote patients recovery.

OBJECTIVE: To identify Pogostemon cablin and Cortex Magnoliae Officinalis in Huoxiang zhengqi pills by Gas Chromatography-Mass Spectrometry. METHODS:Pogostemon cablin and Cortex Magnoliae Officinalis in Huoxiang zhengqi pills were extracted by ultrasound extraction technology and identified on SPB-1701 column(30 m?0.25 mm?0.25 ?m) with He as carrier gas and EI as ion source at an electron energy of 70 eV. RESULT:The main components such as Patchouli alcohol from Pogostemon cablin,and Magnolol and Honokiol from Cortex Magnoliae Officinalis were identified simultaneouly. CONCLUSION: The method is simple,rapid,accurate and reliable,and applicable for the quality control of Huoxiang zhengqi pills.

Objective To analyze the learning curve of microendoscopic lumbar discectomy (MED) and summarize the operative experience. Methods From July 2010 to March 2012, the first 100 patients with single level lumbar disc herniation managed with MED were divided into chronological groups (A, B, C and D), 30 patients in group A, B, C and 10 patients in group D. The comparsons were conducted in terms of operative time , estimated blood loss , number of cases with transition from MED to open surgey or for reoperation , rate of complications and postoperative efficacy. Results The mean operative time and the mean estimated blood loss in each group was valuated respectively. In group A , the operative time and estimated blood loss were significantly decreased as compared with those in group B, C and D respectively (P < 0.05), but those in group B were not significantly different from those in group C and D (P > 0.05). There were 6 complications in group A, 1 complication in group B and C respectively and no complication in group D. The leg pain visual analogue scale and Oswestry disability index at the first month and the twelfth month postoperatively were all improved respectively as compared with those preoperatively (P < 0.01). Conclusion The learning curve of microendoscopic lumbar discectomy generally may reach the plateau when about 30 cases are operated on. The key procedure to pass over the learning curve includes puncture and location , flavectomy , anatomy mark identification, and precaution of damage in dural sac.

BACKGROUND:Fragile bone in senile osteoporosis patients easily weakened pedicle screw fixation capacity. Therefore, bone cement leakage and screw removal cannot be solved during pedicle screw repair in osteoporotic patients with degenerative lumbar spine. OBJECTIVE:To investigate the biomechanical properties of novel pourable pedicle screws and bone cement application effect in osteoporotic patients with degenerative lumbar spine. METHODS:Six lumbar specimens (T11-L5) at the mean age of (72.9±4.2) years were selected, total y 42 vertebrae. The average bone density was 0.696 g/cm2. Any side of al vertebrae was inserted with pourable pedicle screws. 2 mL of bone cement was perfused under the X-ray fluoroscopy with cement push rod and fil ing cylinder. The same number of conventional screws was inserted into the opposite side of the samples. Three-point bending test was performed in two kinds of screws. The maximum vertebral axial pul out force test and the maximum spin torque test were conducted in vertebra to observe the destruction of the vertebral body and implanted effect. RESULTS AND CONCLUSION:(1) The ultimate strength and yield load of novel pourable cement pedicle screws were significantly more than conventional screws (P<0.05). Ultimate displacement and yield displacement were significantly less in novel pourable cement pedicle screws than in conventional screws (P<0.05). (2) The maximum vertebral axial pul out force and the maximum spin torque were significantly higher in novel pourable pedicle screws than in conventional screws (P<0.05). (3) In summary, novel pourable cement pedicle screw is simple to operate, can effectively control bone cement penetration, and improve screw stability in osteoporotic vertebrae. Moreover, after treatment, the removal of screws is convenient, cannot evidently destroy vertebral body or screw channel, and promote early recovery.

ObjectiveTo investigate the curative effect of recombinant bovine basic fibroblast gnowth factor (rbbFGF)in the treatment of senile diabetic foot ulcer and summarize the nursing methods.Methods 28elderly patients with senile diabetic foot ulcer were divided into the control group and the treatment group with 14 patients in each group.The control group was given medical treatment and local wound dressing change,the treatment group was given rbbFGF based upon the above method.The degree of granulation tissue maturity,wound healing time and therapeutic effects were compared between these two groups.The nursing measures were summarized.ResultsOn the 9th day and 13th day,granulation tissue maturity degree of the treatment group was better than the control group.On the 14th day,21th day and 28th day,endepidermis growth velocity of the treatment group was better than the control group.The wound healing time of the treatment group was (29.87±5.73) d and was significantly shorter than (38.49±6.58) d of thecontrol group.The therapeutic effect of the treatment group was better than that of control group on the 28th day.ConclusionsApplication of rbbFGF has good curative effect on senile diabetic foot ulcer and suitable nursing care methods contributes to recovery of elderly patients.

Multiple myeloma is a plasma cell disease with the second highest incidence among hematological malignancies. Its risk of concurrent thrombosis is high, which greatly affects the quality of life and even endangers life of multiple myeloma patients. The pathogenesis of thrombosis in patients with multiple myeloma is complex, which is still unclear. However many mechanisms are considered to be related to hypercoagulable state in patients with multiple myeloma. Currently, there is a lack of thrombosis risk assessment model for multiple myeloma. Therefore, this paper reviews the research and the latest progress of venous thrombosis in patients with multiple myeloma, and provides a theoretical basis for the prevention and treatment of thrombosis.

Objective To summarize nursing experience of digestive tract fistula after orthotopic liver transplantation (OLT). Methods From January 2000 to December 2010,1173 patients received liver transplantation,among whom 61 recipients got digestive tract fistula during early stage after operation.The clinical data and major nursing measures of 61 patients were studied retrospectively. Results The incidence rate of digestive tract fistula after OLT was 5.20％.The incidence rate of bile leakage,gastric fistula,duodenal fistula,jejunal fistula,ileal fistula and transverse colon fistula were 3.90％,0.42％,0.08％,0.34％,0.08％ and 0.34％,respectively.The onset time of digestive tract fistula was from 3 to 24 days post transplantation,and atypical symptoms such as fever,abdominal pain,abdominal distention,weakened enterocinesia and even septic shock were presented.And the rising or descending of white blood cells counts,rising of level of transaminase and total bilirubin in laboratory examination were simultaneously presented.Four patients died of bile leakage,and other seven patients died of intestinal fistula throughout conservative or operative treatment.The rest of 50 were discharged healthily. Conclusions The morbidity of digestive tract fistula after OLT is low,but its mortality rate is high.It is necessary to closely observe patients' condition and confirm diagnosis in early stage,in order to promote the healing of digestive tract fistula after OLT.At the same time,psychological,basic and dietary nursing should be given in order to enhance the survival rate and quality of life of patients.

Osteosarcoma ( OS) is the most common primary malignant bone tumor in children and adolescents. Currently, the combination of surgical resection and chemotherapy is the main method of treatment for OS in the clinic.Al-though, the survival rate has been greatly improved in OS patients with localized disease, the 5-year survival rate has re-mained <20%.It is very important to understand the cause of disease, to develop novel drugs or therapeutics, and to learn the disease through animal models.This review will introduce the progress of animal models of osteosarcoma over the last years.