Objective To evaluate more than 5-year follow-up outcome of avulsion fracture of the anterior cruciate ligament from the tibial insertion site in skeletally immature patients treated with modified arthroscopic internal fixation with cannulated screw and washer. Methods Thirty-nine patients with open physis were treated by modified arthroscopic internal fixation with cannulated screw and washer from March 2000 to November 2003. Regular X-ray plain films at AP and lateral views were conducted to detect the healing of avulsed fragments. Follow-up period of 31 patients was more than 5 years. Functional outcome before and after surgery was evaluated using the Lysholm Knee Score and the Tegner Activity Score. Angular deformity, or leg length discrepancy was assessed by clinical examination and anteroposterior-lateral radiographs of the knee. Instrumented knee laxity was performed using the KT-2000 arthrometer. Results Arthroscopic removal of implants was performed between 3 and 6 months postoperatively, when all fractures were revealed to have healed on X-ray films. No growth disturbance, angular deformation or knee instability was found in 31 patients during more than 5-year follow-up. The Lysholm score was improved from (19.2?14.8) (range 12-48) preoperatively to (98.5?3.1) (range 97-100) postoperatively, with significant statistical difference by the student-t test (t=18.395, P=0.000); The Tegner score was improved from (4.1?1.1) (range 3-5) preoperatively to (8.5?0.8) (range 7-9) postoperatively, with significant statistical difference by the student-t test (t=4.13, P=0.008). Physical examination showed Lachman test (+) in 14 of 31 patients. Instrumented knee laxity (KT-2000) showed manual-maximum side-to-side difference greater than 2 mm (range 2.1-3.8 mm) in 14 of 31 patients. Conclusion Modified arthroscopic internal fixation of avulsion fracture of the anterior cruciate ligament from the tibial insertion site with cannulated screw and washer in skeletally immature patients is a simple, safe, and effective ARIF procedure without growth disturbance.

OBJECTIVE:To investigate the utilization of opioid analgesic drugs in a hospital,so as to provide reference for ra-tional drug use in clinic. METHODS:The utilization of opioid analgesic drugs in the hospital during 2014-2016 was analyzed and compared retrospectively in terms of consumption sum,DDDs,DDC,B/A,etc. RESULTS:Annual consumption sum of opioid an-algesic drugs in the hospital increased slightly in 2015,but decreased significantly in 2016. Fentany transdermal patches(8.4 mg), Oxycodone and acetaminophen tablets and Remifentanil hydrochloride for injection always took up the first 3 places in the list of DDDs. DDDs of Fentanyl citrate injection(0.1 mg)and Morphine sulfate sustained-release tablets increased year by year;while DDDs of Fentany transdermal patches(4.2 mg)and Fentany transdermal patches(8.4 mg)decreased year by year. DDC of all opi-oid analgesic drugs decreased in 2016,with the cancel of drug price addition at the end of 2016. B/A values of most drugs were close to 1.0;while B/A value of Oxycodone hydrochloride sustained-release tablets(40 mg)was much less than 1.0,and that of Fentany transdermal patches(8.4 mg)and Oxycodone and acetaminophen tablets were significantly more than 1.0 for consecutive 3 years. CONCLUSIONS: The variety and specifications of opioid analgesic drugs in the hospital is comprehensive during 2014-2016. The clinical utilization of opioid analgesic drugs is generally rational,but still needs to be supervised effectively and par-ticularly,so as to improve standard use of opioid andalgesic drugs.

Objective To investigate the role of double-balloon enteroscopy (DBE) in the evolution of detection and surgical treatment of small bowel stromal tumors (SBSTs),based on nine years experience.Methods In this retrospective study,193 patients with localized SBSTs were divided into the CT-enterography (CTE) and/or DBE group (n =100) and conventional modalities group (n =93).These patients were further divided into the open surgery group (n =126) and laparoscopy-assisted resection group (n =67).The development of clinical diagnosis and surgical treatment strategies were compared before and after the introduction of DBE.Results The average age and tumor size were significantly smaller in the CTE and/or DBE group than those in the conventional modalities group,respectively (age:50.9 ± 12.1 vs.56.9 ± 11.6 years; tumor size:3.6 ± 1.3 vs.6.1 ± 2.6 cm,P ＜ 0.01).Before the introduction of DBE (from January 2001 to December 2002),all patients underwent conventional modalities,and only 4 cases/year for open surgery.Afterward,from January 2003 to December 2004,84.6％ (11/13) of SBSTs were detected by DBE.From January 2005 to December 2008,50.0％ (23/46) of SBSTs were found by CTE combination with DBE.From January 2009 to December 2011,80.5％ (33/41) of SBSTs were diagnosed by CTE,and the number of patients underwent operation increased up to 25 cases/year,which was nearly 5.3 folds higher than that before the introduction of DBE.Sixty-seven patients were successfully operated by laparoscopy-assisted resection,82.1％ (55/67) of them were detected by CTE ands/or DBE,89.1％ (49/55) of whom had low-or intermediate-risk SBSTs.Conclusion DBE plays an important role in optimizing the algorithm of detection and treatment of SBSTs.

Objective To investigate the clinical effects of ulinastatin in treating extensive burns patients of shock period.Methods 15 patients with extensive burns were assigned to the treatment group(8 eases)and the control group(7 cases)randomly,patients in the control group were given the routine therapy,while those in the treatment group Were also given ulinastatin in the early stage of shock period.The life symptoms,urine amount, shock lasting time and complications were observed in the fourth day after injury.Results Compared to the control group,the life symptoms were steadier,urine amount was more of equivalent,shock lasting time was shorter,and complications were less in the treatment group.Conclusion In the early stage of the shock period for extensive burns patients,ulinastatin can help the patients live through the shock period steady.

Objective To evaluate the clinical value of double-balloon enteroscopy( DBE)in as-sessing the effect of mucosal healing in patients with moderate small bowel Crohn's disease( CD)treated with low-dose azathioprine. Methods CD patients who were naive to any immunomodulators or biological a-gents with lesions mainly located in ileu were screened by multislice CT enterography and anal-route DBE at baseline. Lesions at 150 cm proximal to ileocecal valve were assessed by DBE with Simple Endoscopic Score for CD( SES-CD)after 12 and 24 months of low-dose azathioprine treatment,respectively. Results A total of 36 patients were enrolled and the average tolerated dose of azathioprine was(61. 8 ± 17. 2)mg/day. The total rates of complete,near-complete,partial and no mucosal healing in 36 patients were 19. 4%(7/36), 5. 6%(2/36),27. 8%(10/36),and 47. 2%(17/36)at month 12 and 30. 6%(11/36),25. 0%(9/36), 33. 3%(12/36),and 11. 1%(4/36)at month 24,respectively. The baseline SES-CD score(OR=2. 71, 95%CI:1. 11-6. 63,P=0. 029)and duration of disease(OR=1. 27,95%CI:1. 10-1. 47,P =0. 001) were two relevant factors associated with mucosal healing of small bowel CD. Conclusion DBE has a signif-icant advantage in assessing post-therapy mucosal healing for patients with small bowel CD. The optimal time point for the first follow-up by DBE is at least 12 months after low-dose azathioprine treatment.

Objective To construct a MigR1-CD19 recombinant vector which contains CD19 gene, and to establish a CD19-K562 cell line over-expressing stably CD19 gene and its subcutaneous xenograft model in NOD-SCID mouse.Methods The CD19 gene was inserted into the retroviral vector (MigR1) through recombinant DNA technology after transfection into Plat-A packaging cells, and viral supernatant was collected to transduce K562 cell line repeatedly to obtain stable transduction CD19-K562 cell line.Flow cytometry was used to determine the transduction efficiency and RT-PCR was used to confirmed CD19 gene expression.Cell proliferation and apoptosis were detected by cell count and Annexin V/PI, respectively.Then the subcutaneous xenograft subtype of CD19-K562-a cell line was constructed through subcutaneous inoculation and was cultured in vitro and in vivo.Then its subcutaneous xenograft model in NOD-SCID mouse was established.The characteristics of CD19-K562-a cells were detected by RT-PCR, Wright staining and immunohistochemistry.Results MigR1-CD19 recombinant vector was successfully constructed, and the CD19 positive efficiency of K562 cell line was (99.80±0.17) ％ through retrovirus centrifugation transduction.The transduction and passage had no effects on proliferation and apoptosis of CD19-K562 cells.The CD19-K562-a cell line was constructed after CD19-K562 cells were injected subcutaneously and were passaged in vitro and in vivo.The CD19 positive efficiency of the xenograft subtype CD19-K562-a cell line was (99.78± 0.04) ％.CD19-K562-a and CD19-K562 cells were in an undifferentiated state.NOD-SCID subcutaneous xenografts were established through subcutaneous inoculation of CD19-K562-a cells.CD19 in the CD19-K562-a subcutaneous xenografts was positive, while it was negative in its counterparts K562 cells.Conclusion The CD19-K562 cell line over-expressing CD19 gene and its subcutaneous xenograft model in NOD-SCID mouse are successfully established.

National Natural Science Foundation of China becomes a dominating competitiveness that reflects to hospitals' ability of scientific research in China.Based on application and fund availability of National Natural Science Foundation of Shanghai 6th people's hospital in recent years,this article compared data with other hospital's condition to analyze shortcoming and challenge.It also gave suggestions of selecting a subject,raising rate of support,training outstanding young researchers,enhancing interdisciplinary study,and advancing quality of academic papers.This article would give a reference to promote high-speed,harmonic and sustainable development of scientific research in our hospital.

Objective To study the worth of echo-tracking and M-echo in evaluating artery stiffness comparatively.Methods Fifty two rabbits were divided into 4 groups randomly:control group 1,hypercholesterinemia group,control group 2,and artherosclerosis group,there were 13 rabbits in each group.The rabbits were bred with normal or 2% cholesterol animal feeds according to their groups.The femoral artery blood pressure were measured with catheter.Artery stiffness of abdomen aorta of every rabbit was evaluated by echo-tracking and M-echo at the baseline and the end of the study by 2 doctors,and each doctor did twice.Results All the rabbits of artherosclerosis group had lipid plaques in the thorax and abdomen aortas,and the interior elastic fibers board under the plagues were disrupted.Echo-tracking was more stable and sensitive than M-echo in evaluating artery stiffness.pressure-strain elastic modulus(E?) and stiffness index(?) were sensitive stiffness indexes,but arterial compliance(AC) was not.The indexes of artery stiffness evaluated by echo-tracking with short view of the artery were stable too,but not sensitive compared with long view.E? was relative to diastolic diameter of artery and HDL-C positively(P0.05).Conclusions Echo-tracking is more stable and sensitive than Mecho in evaluation of artery stiffness,long view of the artery should be applied in the evaluation of artery stiffness with the technique of echo-tracking.E? and ? were sensitive artery stiffness indexes,but AC was not.

Objective To explore the correlation between the reliability and validity of Brunel balance assessment(BBA)with the activities of daily living(ADL).Methods The BBA,ADL and walking ability test were performed on 215 patients conforming to the inclusion standard by two professionals.The Pearson correlation analysis,factor analysis and descriptive statistical analysis were adopted.Results The BBA total score and Cronbach's α coefficient in 3 dimensions was 0.852～0.941(P＜0.01),moreover the relative coefficient of each item with its dimension was higher that that of other dimensions;3 common factors were extracted by the factor analysis,the contribution rate was 83.916％;but BBA had the ceiling effect,the relative coefficient of BBA with ADL and walking ability was 0.284-0.709(P＜0.05).Conclusion BBA has a good reliability and validity and can better reflect the functions of ADL and walk.