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Buechel Pappas Resurfacing Shoulder Replacement: Evolution and over 40 Years of Clinical Experience

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Open journal of Orthopedics 2024年第5期14卷 218-228页

作者： frederick F. Buechel Michael j. Pappas Rutgers Nj Medical School Newark NJ USA South Mountain Orthopaedic Associates South Orange NJ USA New jersey Institute of Technology Newark NJ USA

Background: Early exploration of the semi constrained “Floating-Socket” total shoulder replacement (TSR) in 1974 led to a proliferation of various unconstrained designs that allowed resection or retention of the humeral head, depending upon the pathological process involved. Degenerative glenohumeral arthritis with mild to moderate involvement of subchondral bone allowed for a resurfacing option, while severe humeral head involvement required a partial or full humeral head replacement attached to an intramedullary stem for fixation. All components evolved from cemented to cementless application by 1982. The purpose of this paper is to describe the progression of Buechel-Pappas (B-P) shoulder replacement development from the early 1970’s in both cemented and cement less applications. Methods: Clinical evaluations of “Floating-Socket” TSR, followed by B-P stem-type, resurfacing types, bipolar-type and revision components, all of which comprise the B-P Shoulder Replacement System, were performed over a 49-year period. Results: “Floating-Socket” implants improved the results of simple, constrained ball-in-socket designs, but generally failed by glenoid component loosening in both chimpanzee and human applications. Unconstrained resurfacing-type components, both anatomical humeral head and full proximal humeral components, were quite successful, with minimal failures observed in long-term studies. Bipolar salvage implants, used for severe proximal deficiencies, revisions and massive rotator cuff arthropathy, were also very successful;providing overhead range of motion in many patients. Conclusions: Resurfacing hemiarthroplasty, in patients with intact or repairable rotator cuff mechanisms, gave the most satisfactory results and were the least technically complicated to perform, requiring minimal instrumentation. Resurfacing of full proximal humeral deficiencies, using femoral resurfacing components, gave similar clinical results to more complex semi-constrained devices,

关键词： Total Shoulder Replacement Resurfacing Shoulder Replacement

“国际中文教育‘电写转型’必要性与紧迫性”多人谈

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云南师范大学学报（对外汉语教学与研究版） 2024年第5期22卷 20-30页

作者：高正远莫大伟 frederick j.Poolea Liz Carter 密歇根州立大学美国密歇根州48824 首都师范大学北京100089 瓦萨学院美国纽约州12604

引言近几年来,“电写”(即“电子书写”,亦称“E-writing”)已成为国际中文教育界的热门课题之一。虽然迄今为止,业界学者和教师们对电写的认知和接受程度不尽相同,但无论是在国际研讨会议还是在相关的实证研究与教学实验中,电写无疑是... 详细信息

引言近几年来,“电写”(即“电子书写”,亦称“E-writing”)已成为国际中文教育界的热门课题之一。虽然迄今为止,业界学者和教师们对电写的认知和接受程度不尽相同,但无论是在国际研讨会议还是在相关的实证研究与教学实验中,电写无疑是中文教学界正在探讨、验证和争论的新型教学模式之一。

关键词：中文教育中文教学教学实验电子书写必要性与紧迫性接受程度实证研究新型教学模式

Why European Universities and Funding Agencies are Committing to Open Access

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图书情报工作 2006年第1期50卷 24-27页

作者： frederick j Friend OSI Open Access Advocate JISC Consultant

New opportunities presented by technological developments are being realised but more can be achieved in opening access to scientific reports and data. Funding agencies and universities are beginning to realise the benefits from an open access model for the dissemination of research results. European funding agencies and universities are following two strategies towards open access, the deposit of research reports in repositories and the conversion of journals to an open access business model. Various public statements have been made in support of open access, and several organizations-such as jISC in the UK-are undertaking work to assist all stakeholders in scholarly communication in introducing beneficial changes.

关键词： open access jISC OSI

Effects of live yeast on differential genetic and functional attributes of rumen microbiota in beef cattle

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journal of Animal Science and Biotechnology 2019年第4期10卷 1101-1107页

作者： Ibukun M.Ogunade jerusha Lay Kenneth Andries Christina j.Mc Manus frederick Bebe College of Agriculture Communities and the Environment Kentucky State University

Several studies have evaluated the effects of live yeast supplementation on rumen microbial population;however,its effect on differential microbial genes and their functional potential has not been described. Thus, this study applied shotgun metagenomic sequencing to evaluate the effects of live yeast supplementation on genetic and functional potential of the rumen microbiota in beef cattle. Eight rumen-cannulated Holstein steers were randomly assigned to two treatments in a cross-over design with two 25-day experimental periods and a 10-day wash-out between the two periods. The steers were housed in individual pens and fed 50% concentrate-mix and 50% red clover/orchard hay ad libitum. Treatments were(1) control(CON;basal diet without additive) and(2) yeast(YEA;basal diet plus 15 g/d of live yeast product). Rumen fluid samples were collected at 3, 6, and 9 h after feeding on the last d of each period. Sequencing was done on an Illumina Hi Seq 2500 platform. Dietary yeast supplementation increased the relative abundance of carbohydrate-fermenting bacteria(such as Ruminococcus albus, ***, R. bromii, and R. obeum) and lactate-utilizing bacteria(such as Megasphaera elsdenii, Desulfovibrio desulfuricans, and D. vulgaris). A total of 154 differentially abundant genes(DEGs) were obtained(false discovery rate < 0.01). Kyoto Encyclopedia of Genes and Genomes(KEGG) annotation analysis of the DEGs revealed that 10 pathways, including amino sugar and nucleotide sugar metabolism, oxidative phosphorylation, lipopolysaccharide biosynthesis, pantothenate and coenzyme A biosynthesis, glutathione metabolism, beta-alanine metabolism,polyketide sugar unit biosynthesis, protein export, ribosome, and bacterial secretory system, were enriched in steers fed YEA. Annotation analysis of the DEGs in the carbohydrate-active enzymes(CAZy) database revealed that the abundance of genes coding for enzymes belonging to glycoside hydrolases, glycosyltransferases, and carbohydrate bindi

关键词： Functional potential Live yeast Rumen

Changes in fetal mannose and other carbohydrates induced by a maternal insulin infusion in pregnant sheep

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journal of Animal Science and Biotechnology 2015年第2期6卷 222-229页

作者： Laura D Brown Stephanie R Thorn Alex Cheung jinny R Lavezzi frederick C Battaglia Paul j Rozance Perinatal Research Center Division of Neonatology Department of Pediatrics University of Colorado Denver School of Medicine Center for Women’s Health Research University of Colorado Denver School of Medicine

Background： The importance of non-glucose carbohydrates, especially mannose and inositol, for normal development is increasingly recognized. Whether pregnancies complicated by abnormal glucose transfer to the fetus also affect the regulation of non-glucose carbohydrates is unknown. In pregnant sheep, maternal insulin infusions were used to reduce glucose supply to the fetus for both short （2-wk） and long （8-wk） durations to test the hypothesis that a maternal insulin infusion would suppress fetal mannose and inositol concentrations. We also used direct fetal insulin infusions （1-wk hyperinsulinemic-isoglycemic clamp） to determine the relative importance of fetal glucose and insulin for regulating non-glucose carbohydrates. Results： A maternal insulin infusion resulted in lower maternal （50%, P 〈 0.01） and fetal （35-45%, P 〈 0.01） mannose concentrations, which were highly correlated （r^2 = 0.69, P 〈 0.01）. A fetal insulin infusion resulted in a 50% reduction of fetal mannose （P 〈 0.05）. Neither maternal nor fetal plasma inositol changed with exogenous insulin infusions. Additionally, maternal insulin infusion resulted in lower fetal sorbitol and fructose （P 〈 0.01）. Conclusions： Chronically decreased glucose supply to the fetus as well as fetal hyperinsulinemia both reduce fetal non-glucose carbohydrates. Given the role of these carbohydrates in protein glycosylation and lipid production, more research on their metabolism in pregnancies complicated by abnormal glucose metabolism is clearly warranted.

关键词： Fructose Glucose Inositol Insulin Mannose Pregnancy

Disaster Risk Management Through the Design Safe Cyberinfrastructure

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International journal of Disaster Risk Science 2020年第6期11卷 719-734页

作者： jean-Paul Pinelli Maria Esteva Ellen M.Rathje David Roueche Scott j.Brandenberg Gilberto Mosqueda jamie Padgett frederick Haan Department of Mechanical and Civil Engineering Florida Institute of TechnologyMelbourneFL 32901USA Texas Advanced Computing Center University of Texas at AustinAustinTX 78712USA Department of Civil Engineering University of Texas at AustinAustinTX 78712USA Department of Civil Engineering Auburn UniversityAuburnAL 36849USA Department of Civil and Environmental Engineering University of California in Los AngelesLos AngelesCA 90095USA Department of Structural Engineering University of California in San DiegoLa JollaCA 92093USA Department of Civil and Environmental Engineering Rice UniversityHoustonTX 77005USA Engineering Department Calvin CollegeGrand RapidsMI 49546USA

Design Safe addresses the challenges of supporting integrative data-driven research in natural hazards *** is an end-to-end data management,communications,and analysis platform where users collect,generate,analyze,curate,and publish large data sets from a variety of sources,including experiments,simulations,field research,and post-disaster *** achieves key objectives through:(1)integration with high performance and cloud-computing resources to support the computational needs of the regional risk assessment community;(2)the possibility to curate and publish diverse data structures emphasizing relationships and understandability;and(3)facilitation of real time communications during natural hazards events and disasters for data and information *** resultant services and tools shorten data cycles for resiliency evaluation,risk modeling validation,and forensic *** article illustrates salient features of the *** summarizes its design principles,architecture,and *** focus is on case studies to show the impact of Design Safe on the disaster risk *** Next Generation Liquefaction project collects and standardizes case histories of earthquake-induced soil liquefaction into a relational database—Design Safe—to permit users to interact with the *** can correlate in Design Safe building dynamic characteristics based on data from building sensors,with observed damage based on ground motion *** groups upload,curate,and publish wind,seismic,and coastal damage data they gather during field reconnaissance missions,so these datasets are available shortly after a *** a part of the education and community outreach efforts of Design Safe,training materials and collaboration space are also offered to the disaster risk management community.

关键词： Cyberinfrastructure Design Safe Disaster risk management Natural hazard data management

胫骨外侧髁骨折塌陷对关节轴线及接触压力的影响

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中国临床解剖学杂志 2005年第3期23卷 287-290,294页

作者：白波 F.kummer D.Sala K.j.Koval P.Wolinsky 广州医学院第一附属医院骨科广州510120 纽约大学关节疾病专科医院骨科

目的:研究在胫骨外侧髁骨折中关节面塌陷和外侧半月板切除对膝关节轴线、接触面积及压力的影响。方法:6个新鲜尸体膝关节标本制成胫骨外侧髁劈裂骨折模型,通过使用支撑垫片制成关节面塌陷0、1、2、4和6mm。膝关节在屈膝0°,负荷500N和屈... 详细信息

目的:研究在胫骨外侧髁骨折中关节面塌陷和外侧半月板切除对膝关节轴线、接触面积及压力的影响。方法:6个新鲜尸体膝关节标本制成胫骨外侧髁劈裂骨折模型,通过使用支撑垫片制成关节面塌陷0、1、2、4和6mm。膝关节在屈膝0°,负荷500N和屈膝30°,负荷350N。通过数码相机记录关节轴线的变化;而关节内外间隙的压力和压力扩散则由F-Scan感应器记录。每个标本在保留和切除外侧半月板下进行测试。结果:随着关节面塌陷高度的增加,膝关节外翻角度、外侧间隙的平均和最大的接触压力逐渐增加,而接触面积则逐渐减少。在屈膝0°,关节面塌陷6mm时,外翻角度平均增加7.6°,平均接触压力和最大接触压力分别增加208%和97%;而接触面积则减少33%。在同一关节面塌陷高度,切除半月板平均增加38%的外翻角度和外侧间隙45%的接触压力;而接触面积则减少26%。结论:研究结果表明在治疗胫骨外髁劈裂骨折中,减少关节面的塌陷十分重要,特别是在需切除半月板的时候。

关键词：胫骨外侧髁骨折半月板切除接触压力关节面塌陷

Buechel-Pappas Total Ankle Replacement: Use of Highly Cross-Linked Polyethylene Meniscal Bearings over a 13 - 15 Year Interval

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Open journal of Orthopedics 2023年第8期13卷 321-327页

作者： frederick F. Buechel Michael j. Pappas Rutgers Nj Medical School Newark USA South Mountain Orthopaedic Associates South Orange USA Mechanical Engineering NJ Institute of Technology Newark USA

Background: The Buechel-Pappas (BP) meniscal bearing total ankle replace-ment was initially developed as a “shallow-sulcus” talar component device using cobalt-chromium-molybdenum alloy, in 1978, and later, modified to a “deep-sulcus” talar component device using titanium nitride (TiN) ceramic and porous coating in 1989. Wear related osteolytic cysts were noted in the tibia and talus surrounding these devices that compromised long term fixation and stability when using standard ultra-high molecular weight polyethylene (UHMWPe) as a bearing material. This study explores the use of highly cross-linked UHMWPe (HXLPe) to minimize osteolysis by replacing standard UHMWPe with this more wear-resistant material. Methods: There were 12 primary and 8 revision total ankle replacements followed for 13 to 15 years. HXLPe was used in all meniscal bearings, either as primary or revision implants. All stable metallic tibial and talar components were retained in revision cases. Osteolytic cysts greater than 10 mm in diameter were bone grafted with homologous morselized banked bone through cortical windows in the tibia or talus. No adjuvant screw fixation was used to stabilize any metallic implant. Results: No HXLPe bearings failed in this study, and no re-revisions were performed. No primary total ankle replacement failed in this study, and there were no substantial osteolytic cysts (>2 mm) observed in primary total ankle replacements on plain X-rays. All bone grafted osteolytic cysts in revision ankle replacements remained stable, even though partial resorption of the grafted material was identified in most of the ankles. No loosening of porous coated and TiN coated tibial and talar components were seen;the longest surviving metal components in the revision group was 24 years with the revised bearing at 15 years. Conclusions: HXLPe has greatly improved wear resistance in meniscal-bearing BP total ankle replacements in both primary and revision arthroplasties. Osteolytic cysts can b

关键词： Cementless Total Ankle Replacement Meniscal Ankle Replacement Osteolysis Bone Graft of Cysts

巨猿、化石人和智人牙齿的波动不对称:人类进化中压力源变化的意义(英文)

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心理学报 2007年第3期39卷 489-494页

作者： Michael j. frederick Gordon G. Gallup jr University at Albany

波动不对称(FA)是压力的随机性引发双侧完美对称偏离的现象,这是个体无力免受发展中不利因素(如早期营养不良)侵害的一个标志。比较个体口腔两侧牙齿的大小是一种测量 FA 的方法。本研究汇集了 10 个物种共 296 名个体的牙齿测量结果,... 详细信息

波动不对称(FA)是压力的随机性引发双侧完美对称偏离的现象,这是个体无力免受发展中不利因素(如早期营养不良)侵害的一个标志。比较个体口腔两侧牙齿的大小是一种测量 FA 的方法。本研究汇集了 10 个物种共 296 名个体的牙齿测量结果,测量对象包括黑猩猩(学名 Pan troglodytes)、猩猩(学名Pongo pygmaeus)、大猩猩(学名 Gorilla gorilla)、智人(学名 Homo sapiens),以及许多化石人。分析发现,猩猩样本牙齿的 FA 水平要显著低于大猩猩、黑猩猩、直立人、尼安德特人和智人样本的 FA 水平。而与之相反的是,智人与尼安德特人样本的牙齿 FA 水平要显著高于其它任何一种巨猿样本的 FA 水平。该文提出了有关缓和的选择压力的解释。

关键词：波动对称选择压力化石人