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| 1 | Use of three-dimensional printing in preoperative planning in orthopaedic trauma surgery: A systematic review and meta-analysis显示文摘BACKGROUND With the increasing complexity of surgical interventions performed in orthopaedic trauma surgery and the improving technologies used in threedimensional(3D)printing,there has been an increased interest in the concept.It has been shown that 3D models allow surgeons to better visualise anatomy,aid in planning and performing complex surgery.It is however not clear how best to utilise the technique and whether this results in better outcomes.AIM To evaluate the effect of 3D printing used in pre-operative planning in orthopaedic trauma surgery on clinical outcomes.METHODS We performed a comprehensive systematic review of the literature and a metaanalysis.Medline,Ovid and Embase were searched from inception to February 8,2018.Randomised controlled trials,case-control studies,cohort studies and case series of five patients or more were included across any area of orthopaedic trauma.The primary outcomes were operation time,intra-operative blood loss and fluoroscopy used.RESULTS Seventeen studies(922 patients)met our inclusion criteria and were reviewed.The use of 3D printing across all specialties in orthopaedic trauma surgery demonstrated an overall reduction in operation time of 19.85%[95%confidence intervals(CI):(-22.99,-16.71)],intra-operative blood loss of 25.73%[95%CI:(-31.07,-20.40)],and number of times fluoroscopy was used by 23.80%[95%CI:(-38.49,-9.10)].CONCLUSION Our results suggest that the use of 3D printing in pre-operative planning in orthopaedic trauma reduces operative time,intraoperative blood loss and the number of times fluoroscopy is used. | Catrin Morgan Chetan Khatri Sammy A Hanna Hutan Ashrafian Khaled M Sarraf | 2020 | World Journal of Orthopedics2020，11，1： | 7 |
| 2 | Nationwide trends and predictors of inpatient mortality in 83884 transjugular intrahepatic portosystemic shunt显示文摘AIM: To evaluate and validate the national trends and predictors of in-patient mortality of transjugular intrahepatic portosystemic shunt(TIPS) in 15 years.METHODS: Using the National Inpatient Sample which is a part of Health Cost and Utilization Project, we identified a discharge-weighted national estimate of 83884 TIPS procedures performed in the United States from 1998 to 2012 using international classification of diseases-9 procedural code 39.1. The demographic, hospital and co-morbility data were analyzed using a multivariant analysis. Using multi-nominal logistic regression analysis, we determined predictive factors related to increases in-hospital mortality. Comorbidity measures are in accordance to the Comorbidity Software designed by the Agency for Healthcare Research and Quality.RESULTS: Overall, 12.3% of patients died during hospitalization with downward trend in-hospitalmortality with the mean length of stay of 10.8 ± 13.1 d. Notable, African American patients(OR = 1.809 vs Caucasian patients, P < 0.001), transferred patients(OR = 1.347 vs non-transferred, P < 0.001), emergency admissions(OR = 3.032 vs elective cases, P < 0.001), patients in the Northeast region(OR = 1.449 vs West, P < 0.001) had significantly higher odds of inhospital mortality. Number of diagnoses and number of procedures showed positive correlations with in-hospital death(OR = 1.249 per one increase in number of procedures). Patients diagnosed with acute respiratory failure(OR = 8.246), acute kidney failure(OR = 4.359), hepatic encephalopathy(OR = 2.217) and esophageal variceal bleeding(OR = 2.187) were at considerably higher odds of in-hospital death compared with ascites(OR = 0.136, P < 0.001). Comorbidity measures with the highest odds of in-hospital death were fluid and electrolyte disorders(OR = 2.823), coagulopathy(OR = 2.016), and lymphoma(OR = 1.842).CONCLUSION: The overall mortality of the TIPS procedure is steadily decreasing, though the length of stay has remained relatively constant. Specific patient ethnicity, location, transfer status, primary diagnosis and comorbidities correlate with increased odds of TIPS in-hospital death. | Edward Wolfgang Lee Andrew Kuei Sammy Saab Ronald W Busuttil Francisco Durazo Steven-Huy Han Mohamed M El-Kabany Justin P Mc Williams Stephen T Kee | 2016 | World Journal of Gastroenterology2016，22，25： | 7 |
| 3 | The failure of brittle porous solids under eompressive stress states显示文摘 | Sammis C G Ashby M F | 1986 | Acta Meta- llurgica1986，34，3： | 1 |
| 4 | Cooperative dual catalysis s application to the highly enantioselective conjugate cyanation of unsaturated imides显示文摘 | SAMMIS G M DANJO H JACOBSEN E N | 2004 | J Am Chem Soc2004，126，32： | 1 |
| 5 | Fractal dimension and b-value on creeping and locked patches of the San-Andreas fault near Parkfield,California显示文摘 | WYSS M SAMMIS C G NADEAU R M | 2004 | Bull Seism Soc Am2004，94，： | 1 |
| 6 | Highly enantioselective, catalyticconjugate addition of cyanide to unsaturated imides 显示文摘 | Sammis Glenn M J Eric N | 2003 | Journal ofthe American Chemical Society2003，125，15： | 1 |
| 7 | Microvascular decompression to treat hemifacial spasm:A long-term results for a consecutive serious of 143 patients显示文摘 | SAMMI M GUNTHER T LACONETTA G | 2002 | Neurosury2002，50，： | 1 |
| 8 | Computing the crop water production function for onion显示文摘 | A I-Jamal M S Sammis T W Ball S | 2000 | Agric Water Manage2000，46，： | 1 |
| 9 | Management of1000vestibular schwan-no-as(acoustic neuromas):The facial nerve-preservation and rest-itution of function显示文摘 | Sammi M matthies C | 1997 | Neurosurgery1997，40，： | 1 |
| 10 | Fractal dimension and b value on creeping and locked patches of the Sanandreas fault near Parfield California显示文摘 | Wyss M Sammis c G Nadeau R M | | 0，，02： | 1 |
| 11 | The failure of britle poroussolids under compressive stress states显示文摘 | Sammis C G Ashby M F | 1986 | Acta Met- allurgica1986，34，3： | 1 |
| 12 | A growth-irrigation scheduling model for wastewater use in forest production显示文摘 | Al-Jamal M S Sammis T W Mexal J G | 2002 | Agricul- turol Water Management2002，56，1： | 1 |
| 13 | Fractal dimension and b value on creeping and locked patches of the San Andreas Fault near Parkfield, California显示文摘 | Wyss M Sammis CG Nadeau RM Wiemer S | 2004 | Bull Seism Soc Am2004，94，： | 1 |
| 14 | The damage mechanics of brittle solids in compression显示文摘 | Ashby M F Sammis C G | 1990 | Pure Appl Geophys1990，133，3： | 1 |
| 15 | Surgical management of trigeminal schwannomas显示文摘 | Sammi M Migliorl MM Tatagiba M | 1995 | J Neurosurg1995，82，5： | 1 |
| 16 | Mananagement of 1 000 vestibular schwannomas (acoustic neuromas): The facial nerve-preservation and restitution of function显示文摘 | SAMMI M MATTHIES C | 1997 | Neurosurgery1997，40，： | 1 |
| 17 | Retrosigmoid intradural suprameatal approach to Meckel's cave and the middle fossa: surgical technique and outcome显示文摘 | Sammi M Tatagiba M Carvalho GA | 2000 | J Neurosurg2000，92，2： | 1 |
| 18 | The failure of brittle porous solids under compressive stress states显示文摘 | SAMMIS C G ASHBY M F | 1986 | Acta Metallurgica1986，34，3： | 1 |
| 19 | Management of 1000 vestibular schwannomas(acoustic neuromas): 3he facial nerve Proservation and restitution of 显示文摘 | Sammi M Matthis C | 1997 | Nurosurgery1997，40，： | 1 |
| 20 | Management of 1000 vestibular sch- wannomas (acoustic neuromas): the facial nervepreservation andrestitution of function 显示文摘 | Sammi M Matthies C | 1997 | Neurosurgery1997，40，： | 1 |
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