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A combination of digital design and three-dimensional printing to assist treatment of thoracolumbar compression fractures using percutaneous kyphoplasty 被引量:2
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作者 Hui Lu Daixiang Jiang +1 位作者 Qimei Wu Rong Liu 《Global Health Journal》 2021年第4期190-193,共4页
Objective:To evaluate the clinical efficacy of the preoperative digita1 design combined with three dimensional(3D)printing models to assist percutaneous kyphoplasty(PKP)treatment for thoracolumbar compression frac tur... Objective:To evaluate the clinical efficacy of the preoperative digita1 design combined with three dimensional(3D)printing models to assist percutaneous kyphoplasty(PKP)treatment for thoracolumbar compression frac tures.Methods:From January 2018 to August 2020,we obtained data of 99 patients diagnosed thoracolumbar compression fractures.These patients were divided into control group(n=50)underwent traditional PKP surgery,and observation group(n=49)underwent preoperative digital design combined with 3D printing model assisted PKP treatment.The clinical efficacy was evaluated with five parameters,including operation time,number of intraoperative radiographs,visual analogue scale(VAS)score,Cobb Angle change,and high compression rate of injured vertebrae.Results:There were statistically significant differences of operation time and number of intraoperative radio graphs between the two groups(P<0.05).For VAS score,Cobb Angle change and vertebral height compression rate,all of these three parameters were significantly improved when the patients accepted surgery teatment in two groups(P<0.05).However,there were no significant differences between control group and observation group for these three parameters either before or after surgery(P>0.05).Conclusions:Through the design of preoperative surgical guide plate and the application of 3D printing model to guide the operation,the precise design of preoperative surgical puncture site and puncture Angle of the injured vertebra was realized,the number of intraoperative radiographs was reduced,the operation time was shortened and the operation efficiency was improved. 展开更多
关键词 Percutaneous kyphoplasty Thoracolumbar compression fracture Digital design Three-dimensional(3D)printing
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Human acellular amniotic membrane implantation for lower third nasal reconstruction:a promising therapy to promote wound healing 被引量:2
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作者 Si-Liang Xue Kai Liu +3 位作者 Ornella Parolini Yue Wang Li Deng Yong-Can Huang 《Burns & Trauma》 2018年第4期279-286,共8页
Background:The lower third of the nose is one of the most important cosmetic units of the face, and its reconstructive techniques remain a big challenge. As an alternative approach to repair or regenerate the nasal ti... Background:The lower third of the nose is one of the most important cosmetic units of the face, and its reconstructive techniques remain a big challenge. As an alternative approach to repair or regenerate the nasal tissue, the biomaterial-based strategy has been extensively investigated. The aim of this study is to determine the safety and efficacy of human acellular amniotic membrane (HAAM) to repair the full-thickness defects in the lower third of the nose in humans. Methods:In this study, 180 patients who underwent excision of skin lesions of the lower third of the nose from 2012 to 2016 were included;of the patients, 92 received HAAM and Vaseline gauze treatments, and the other 88 patients received Vaseline gauze treatment only. The haemostasis time and the duration of operation were recorded during surgery;after surgery, the time to pain disappearance, scab formation and wound healing, and the wound healing rate were measured. Results:Immediately after the HAAM implantation, a reduction of the haemostasis time and an accelerated disappearance of pain were observed. Compared with the control group, the formation and detachment of scab in patients who received the HAAM implantation were notably accelerated, postoperatively. When the diameter of the lesion exceeded 5 mm, the HAAM implantation was found to enhance the wound healing, although this enhancement was not seen when the diameter was less than 5 mm. Additionally, the HAAM implantation significantly reduced bleeding, wound infection and scar formation, postoperatively. Conclusions:HAAM-assisted healing is a promising therapy for lower third nasal reconstruction leading to rapid wound healing and fewer complications and thus has considerable potential for extensive clinical application in repairing skin wounds. Trial registration:ChiCTR1800017618, retrospectively registered on July 08, 2018. 展开更多
关键词 ACELLULAR amniotic membrane NASAL reconstruction WOUND HEALING Repair
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Bridging from the Sequence to Architecture: Graft Copolymers Engineering via Successive Latent Monomer and Grafting-from Strategies 被引量:2
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作者 Yajie Zhang Xiaohuan Cao +4 位作者 Yang Gao Yujie Xie Zhihao Huang Zhengbiao Zhang Xiulin Zhu 《Chinese Journal of Chemistry》 SCIE CAS CSCD 2021年第5期1273-1280,共8页
The on-demand building copolymer structures,from sequence to architecture,is crucial in understanding the relation between pol-ymer structure and property,meanwhile motivating the innovation of polymer hierarchy.Howev... The on-demand building copolymer structures,from sequence to architecture,is crucial in understanding the relation between pol-ymer structure and property,meanwhile motivating the innovation of polymer hierarchy.However,the challenge is conspicuous for,complicated polymer structures from inherently intricate polymerization.In this work,copolymers with tailored grafting density and distributions were achieved using successive latent monomer and grafting-from strategies.The hydroxyl group functionalized fu-ran/maleimide adduct(FMOH)was selected as the latent monomer for RAFT polymerization of an array of copolymers with tailored localization of hydroxyl group along the main chain.The hydroxyI group further initiated the ring opening polymerization(ROP)of L-lactide or ε-caprolactone,resulting in a library of multicomponent copolymers via grafting-from strategy.The initiating efficiency reached to-100% with variable molecular weight(21300-58600 Da)and narrow distributions(Ð_(M)<1.25),indicating that such graft copolymers possessed controlled density and distribution of side chains as its linear template.The investigation on thermal properties of the well-defined graft copolymers implied that the precise tailoring over copolymer structures at the molecule level could lead to tunable chemical/physical properties.This work bridged polymer from sequence to architecture,unveiled a new meth-od in creating graft copolymers with programmable structures and provided the insight into the structure/property relationship. 展开更多
关键词 Sequence determination Polymers Latent Monomer Polymerization MALEIMIDE
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Taxonomical notes on selected freshwater fish species described from northern and central Vietnam (Cypriniformes: Balitoridae, Cobitidae, Cyprinidae, Nemacheilidae; Perciformes: Channidae, Osphronemidae; Synbranchiformes: Mastacembelidae) 被引量:2
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作者 Marco Endruweit 《Zoological Research》 CAS CSCD 北大核心 2014年第2期142-159,共18页
Selected,little known taxa of northern and central Vietnamese freshwater fish species are reviewed.Nomenclatural acts are taken:Hemibarbus lehoai is placed in synonymy of H.maculatus,Paracobitis hagiangensis in synony... Selected,little known taxa of northern and central Vietnamese freshwater fish species are reviewed.Nomenclatural acts are taken:Hemibarbus lehoai is placed in synonymy of H.maculatus,Paracobitis hagiangensis in synonymy of Schistura caudofurca.A neotype of Micronemacheilus bacmeensis is assigned.The name Channa hanamensis is treated as a nomen nudum.Two labeonine species described from China are nomenclaturally affected:Garra findolabium is transferred to Vinagarra and its specific epithet is treated as a noun in apposition;the specific epithet of Sinigarra napoense is corrected to napoensis. 展开更多
关键词 New species Ichthyology Taxonomy Nomenclature VIETNAM
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Schistura megalodon species nova, a new river loach from the Irrawaddy basin in Dehong, Yunnan, China (Teleostei: Cypriniformes: Nemacheilidae)
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作者 Marco Endruweit 《Zoological Research》 CAS CSCD 北大核心 2014年第5期353-361,共9页
A new species of river loach, Schistura megalodon sp. nov., is described from the Irrawaddy basin in Yingjiang County, Dehong Autonomous Prefecture, Yuunan Province, China. The following combination of diagnostic char... A new species of river loach, Schistura megalodon sp. nov., is described from the Irrawaddy basin in Yingjiang County, Dehong Autonomous Prefecture, Yuunan Province, China. The following combination of diagnostic characters serve to distinguish it from all other congeners in the given zoogeographical region: a large processus dentiformes in the upper jaw, a short pre-anus length of 65.4%-66.3% of SL, long paired fins (pectoral: 20.8%-24.2% of SL; pelvic: 17.9%-20.6% of SL), a wide body of 9.7%-11.3% of SL at anal fin origin, an incomplete lateral line, the absence of an orbital lobe, and a broad and distinct basicaudal bar with forward extensions. 展开更多
关键词 Schistura megalodon Irrawaddy Dehong YUNNAN
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Four new records of fish species (Cypriniformes: Nemacheilidae, Balitoridae; Characiformes: Prochilodontidae) and corrections of two misidentified fish species (Tetraodontiformes: Tetraodontidae; Beloniformes: Belonidae) in Yunnan, China
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作者 Marco Endruweit 《Zoological Research》 CAS CSCD 北大核心 2014年第1期51-58,共8页
In this study, six fish species of five families are reported for the first time from Yunnan Province, China. The nemacheilid Schistura arnplizona Kottelat, 2000 is reported from the Luosuojiang River and Nanlahe Rive... In this study, six fish species of five families are reported for the first time from Yunnan Province, China. The nemacheilid Schistura arnplizona Kottelat, 2000 is reported from the Luosuojiang River and Nanlahe River subbasins, Mekong basin; the prochilodontid Prochilodus lineatus (Valenciennes, 1837), the balitorid Vanmanenia serrilineata Kottelat, 2000, and the tetraodontid Monotrete turgidus Kottelat, 2000, from Nanlahe River subbasin, Mekong basin; the balitorid Beaz^fortia daon (Mai, 1978), and the belonid Xenentodon canciloides (Bleeker, 1854), both, from Black River subbasin, Red River basin. The freshwater puffer M. turgidus and the needlefish ,E canciloides have been previously misidentified as Tettraodon leiurus (Bleeker, 1950) and Tylosurus strongylurus (van Hasselt, 1823), respectively. 展开更多
关键词 New record MISIDENTIFICATION Mekong basin Red River YUNNAN
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Schistura sexnubes, a new diminutive river loach from the upper Mekong basin, Yunnan Province, China (Teleostei: Cypriniformes: Nemacheilidae)
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作者 Marco Endruweit 《Zoological Research》 CAS CSCD 北大核心 2014年第1期59-66,共8页
An ichthyofaunistic survey of Mekong tributaries in Lincang Prefecture, Yunnan Province, China yielded a new species of nemacheilid loach, herein described as Schistura sexnubes species nova. The new species is readil... An ichthyofaunistic survey of Mekong tributaries in Lincang Prefecture, Yunnan Province, China yielded a new species of nemacheilid loach, herein described as Schistura sexnubes species nova. The new species is readily distinguishable from its congeners by the following combination of characters: 8+8 branched caudal fin rays, an incomplete lateral line, a dissociated caudal bar, a shallow caudal peduncle depth (7.6%-9.6% SL; respectively caudal peduncle 1.76-1.95 times longer than deep), a diminutive size of less than 50 mm SL, and no sexual dimorphism. A dorsocephalic pattern consisting of a black, forward directed V-shaped formation located between the nares, and a white, ovoid blotch on the upper operculum serves as an autapomorphy. 展开更多
关键词 Schistura sexnubes New species Mekong basin Nemacheilidae Yunnan
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