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33 个结果
  • 简介:客观;为了评估临床的申请并且在皮肤上讨论反向的背面的掌部的拍动和它的复合拍动的起作用的指示,hand.Methods背叛:从1990~2003,我们使用了反向的背面的掌部的拍动和它的复合拍动在122种情况中修理手指的软织物缺点,它与腱接枝,神经接枝或骨头接枝包括了反向的掌部的拍动的90个盒子和它的复合拍动的32个盒子。基于后续观察,我们分析了在比较tocontralateral的掌部的拍动和它的复合拍动,手术后的轮廓,拍动颜色和质地回顾地摸的颠倒的指示。结果:在122个盒子的系列,熬过的拍动和施主地点缺点直接被关上。后续时期从1-12年。拍动和它的复合拍动的Thepostoperative轮廓,颜色和质地类似于正常手指的那些,尽管线性疤留下了。根据感觉恢复的标准(英国医药研究委员会,BMRC),拍动的感觉功能在操作以后恢复了S31年。在有拍动与腱接枝对待的腱缺点的10种情况中,手指的屈曲扩展的功能用全部的活跃运动的测量的方法与相反地侧面的手指相比恢复了50%-75%。在有不属于工会的phalangeal或拍动与骨头接枝对待的骨头缺点的7种情况中,联合为3months.Conclusions发生在操作以后:到有骨头或腱暴露的手指上的软织物缺点,反向的掌部的拍动和它的复合拍动是为修理的一种更好的选择。修理的范围直到手指的远侧的interphalangeal关节。第二根背面的掌部的动脉象脉管的小花梗的选择更一致、更大,与另外的背面的掌部的动脉比较。手术后的拍动颜色和质地类似于正常手指。

  • 标签: 掌骨疾病 化合物 治疗 病理机制
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  • 简介:AIM:Tostudytheeffectsofdifferentflapsizesonvisualacuity,refractiveoutcomes,andaberrationsafterfemtosecondlaserforlaserkeratomileusis(LASIK).·METHODS:Ineachofthefortypatientsenrolled,1eyewasrandomlyassignedtoreceivetreatmentwitha8.1mmdiametercornealflap,definedasthesmallflap,whiletheothereyewastreatedwitha8.6mmdiametercornealflap,definedasthebigflap.Refractiveerrors,visualacuity,andhigher-orderaberrationswerecomparedbetweenthetwogroupsatweek1,month1and3postoperatively.·RESULTS:Thepostoperativerefractiveerrorsandvisualacuityallconformedtotheintendedgoal.Postoperativehigher-orderaberrationswereincreased,especiallyinsphericalaberration(Z12)andverticalcoma(Z7).Therewerenostatisticallysignificantdifferencesbetweenthetwogroupsintermsofpostoperativerefractiveerrors,visualacuity,rootmeansquareoftotalHOAs(HO-RMS),trefoil30°(Z6),verticalcoma(Z7),horizontalcoma(Z8),trefoil0°(Z9),andsphericalaberration(Z12)atanypointduringthepostoperativefollow-up.·CONCLUSION:Boththesmallandbigflapsaresafeandeffectiveprocedurestocorrectmyopia,providedtheexposurestromameetstheexcimerlaserablations.Thepersonalizedsizecornealflapisfeasible,aswecandesignthesizeofcornealflapbasedontheprinciplethatthecornealflapdiametershouldbeequaltoorgreaterthanthesumofthemaximumablationdiameterandapparatuserror.

  • 标签: FEMTOSECOND LASER LASER KERATOMILEUSIS refractive surgery
  • 简介:Thepresentworkusesdynamicmodedecomposition(DMD)toanalyzewakeflowofNACA0015airfoilwithGurneyflap.ThephysicsofDMDisfirstintroduced.ThenthePIV-measuredwakeflowvelocityfieldisdecomposedintodynamicalmodes.Thevortexsheddingpatternbehindthetrailingedgeanditshigh-orderharmonicshavebeencapturedwithabundantinformationsuchasfrequency,wavelengthandconvectionspeed.Itisobservedthathigh-orderdynamicmodesconvectfasterthanlow-ordermodes;moreoverthewavel...

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  • 简介:位和手掌的degloving损害仍然是坚持的挑战。我们使用了在前面偏一边的大腿拍动与这个索引,中间和戒指手指的degloving损害对待一个18岁的、右手的男工人。拍动被指定包支撑degloving损害的三根手指的全部圆周并且形成露指手套手。三根手指的远侧的方阵的全部的长度被保留几乎完全。施主缺点被裂口厚度皮肤接枝盖住。在第一操作以后的三个月,X射线学揭示了终端phalanxexr

  • 标签: 手指 皮瓣 脱套 治疗 皮肤移植 组织缺损
  • 简介:AbstractPurpose:Fingertip injuries are common in industrial production activities as well as in domestic work. Loss of pulp hampers daily life activities. Functional and aesthetic aspects are important in fingertip reconstruction. The bone is usually exposed along with soft tissue loss. Therefore to reconstruct the pulp flap with adequate bulk is required.Methods:We reported a case series of 12 patients with the injury over the volar aspect of distal phalanx of the index or middle finger. In all cases, laterally based thenar flap was chosen. The flap donor site was closed primarily in most of cases, while 4 patients required skin graft. The flap was detached between 2-3 weeks. Functional assessment was done using static and dynamic 2-point discrimination and range of motion at each joint. The aesthetic outcome was assessed through questionnaire. The results were analyzed using the unpaired t-test (SPSS version 21).Results:Partial necrosis occurred in 2 cases while rest of flaps survived successfully. Static 2-point discrimination ranged from 6-10 mm, mean 8.6 mm; and dynamic 2-point discrimination ranged from 8-10 mm, mean 8.9 mm. The mean satisfaction score was (4.0 ± 0.55).Conclusion:Thenar flap is a good choice for reconstruction of the finger pulp as it provides the bulk with good functional and aesthetic outcome.

  • 标签: Finger injuries Finger pulp reconstruction Thenar flap
  • 简介:Objective:Toreportcomplicationsrelatedtoflaparoundimplantsaftercochlearimplantation,possiblecausesofsuchcomplicationsandtreatments.Methodsandmaterial:Weperformedaretrospectiveanalysisofchildreninwhomcomplicationsrelatedtoflaparoundimplantsoccurredafterundergoingcochlearimplantationinourdepartmentfrom2005to2016.Results:Complicationsamong1500cochlearimplantation(CI)recipientsbythesamesurgeonincludedhematoma(n?20)andseromaaroundimplants(n?15),ofwhichmost(n?10)recoveredin2weeksaftereffectivedrainage,utilityofantibioticsandpressuredressing,but5developedflapnecrosisandhadtoundergocontralateralre-implantation.Fourpatientsdevelopedabscessaroundimplants,ofwhom2recoveredafter2weeksofdrainage,gentamicinirrigationanduseofantibiotics,but2patientsendedupwithflapnecrosisandhadtoreceivecontralateralreimplantation.Conclusions:Immediatedrainage,pressuredressingandantibioticscanbeusedtoeffectivelycontrolseromaaroundimplants.Forseromalastingformorethantwoweekswithoutimprovement,surgicaldrainagemaybeneed.

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  • 简介:Atwo-dimensionalsteadyReynolds-averagedNavier–Stokes(RANS)equationwassolvedtoinvestigatetheeffectsofaGurneyflaponSFYT15thickairfoilaerodynamicperformance.Thisairfoilwasdesignedforflightvehicleoperatingat20kmaltitudewithfreestreamvelocityof25m/s.Thechordlength(C)is5mandtheReynoldsnumberbasedonchordlengthisRe=7.76×105.Gurneyflapswiththeheightsrangingfrom0.25%Cto3%Cwereinvestigated.Theshearstresstransport(SST)k-ωturbulencemodelwasusedtosimulatetheflowstructurearoundtheairfoil.ItisshowedthatGurneyflapcanenhancenotonlytheprestallliftbutalsolift-to-dragratioinacertainrangeofanglesofattack.Specially,atcruiseangleofattack(α=3°),Gurneyflapwith0.5%Cheightcanincreaselift-to-dragratioby2.7%,andliftcoefficientby12.9%,respectively.Furthermore,thesurfacepressuredistribution,streamlinesandtrailing-edgeflowstructurearoundtheairfoilareillustrated,whicharehelpfultounderstandthemechanismsofGurneyflaponairfoilaerodynamicperformance.Moreover,itisfoundthattheincreaseofairfoildragwithGurneyflapcanbeattributedtotheincreaseofpressuredragbetweenthewindwardandtheleewardsidesofGurneyflapitself.

  • 标签: GURNEY襟翼 翼型设计 数值模拟 STOKES 升力系数 表面压力分布
  • 简介:Thefrontpartoftheflowisveryimportantandcomplexinthecaseofdebrisflowwherethereisanaccumulationoflargeboulders.Itisimportanttocontrolordampentheenergyofthefrontalpartofadebrisflowforthesafetyofthedownstreamareabecausetheimpactpressureofdebrisflowismuchgreaterthanthatofclearfluid.Themainobjectiveofthisstudyistoanalyzethehydrauliccharacteristicsoftheproposeddam(i.e.closed-typedamwithflap).Theverticalpressuredistributionofthistypeiscomparedwithconventionaldamtypes.Intheexperiments,thetotalpressureassociatedwithmajordebrisflowswasrecordedinrealtimebyasystemconsistingoffourdynamicpressuresensorsinstalledondifferenttypesofdam.Theresultsfromexperimentaldataclearlyshowthatthedamwiththeflaphasadvantagesofcapturingthedebrisflowwithlargebouldersandcontrolsthetotalpressurebyflowcirculationduetopresenceoftheflapstructurecomparedtoaclosed-typedamwithoutflap.Furthermore,theempiricalcoefficientsofhydrodynamicandsolidcollisionmodelswereproposedandcomparedwithavailablecoefficients.

  • 标签: DEBRIS flow FLAP STRUCTURE Empirical COEFFICIENT
  • 简介:讨论联合外部fixator和皮肤拍动调换的效果在上的目的暴露并且不属于工会的骨头。开的骨折在1998年3月的经期期间在我们的医院里对待到2008年6月的感染的不属于工会、暴露的骨头列在后面的12个盒子的数据被分析的方法。有10个男病人,2个女病人,其变老在19-52年之间并且平均28年。有10胫骨的破裂和2大腿骨的破裂。疾病的功课与19个月的吝啬的时期持续了12-39月。所有盒子被联合外部fixator和皮肤拍动调换对待。结果主要愈合在10种情况中被完成并且推迟在胫骨由于软织物缺点和因此本地的拍动调换在被暴露的2种情况中愈合被执行。所有12个盒子与8个月的平均时间在操作以后在6-12月以内有多骨的联合。他们被跟随在上面为1-3,年和所有破裂愈合了在上面与好功能和没有感染复发。联合外部fixator和皮肤拍动调换治疗在对待上看了最佳的效果的结论感染了,暴露并且不属于工会的骨头

  • 标签: 外固定架 皮瓣 治疗 转位 耦合 股骨骨折
  • 简介:AIMTo在trabeculectomy.METHODSThis学习回顾地在trabeculectomy以后与迟了发作的过滤的水泡漏从106个病人考察了106只眼睛以后,为修理迟了发作的过滤水泡漏评估自体同源的结膜拍动外科的有效性从2005~2015在中山眼的中心收到了自体同源的结膜拍动外科。基本信息被记录,并且在trabeculectomy之间的间隔时间和象相关风险因素,intraocular压力(IOP),前面的房间深度(ACD)和最好一样的自体同源的结膜拍动外科改正了视觉尖酸(BCVA)被分析。而且,完成了的41个病人1年列在后面在上面被分析决定IOP和BCVA变化和50男性和56女性使遭到的长期的成功rates.RESULTSThe(平均年龄39.13???????日??€千???倠??????呍?倠??日????????‰??洳??

  • 标签: 自体同源的结膜拍动 过滤水泡漏 TRABECULECTOMY
  • 简介:AbstractBackground:The use of autologous free-tissue transfer is an increasingly utilized tool in the ladder of reconstructive options to preserve and restore function in patients with head and neck cancer. This article focuses on the evidence surrounding perioperative care that optimizes surgical outcomes and describes one tertiary center's approach to standardized free-flap care.Data Sources:This article examines English literature from PubMed and offers expert opinion on perioperative free-flap care for head and neck oncology.Conclusion:Free-flap reconstruction for head and neck cancer is a process that, while individualized for each patient, is best supported by a comprehensive and standardized care pathway. Surgical optimization begins in the preoperative phase and a thoughtful approach to intraprofessional communication and evidence-based practice is rewarded with improved outcomes.

  • 标签: facial plastics and reconstruction free-flap tissue transfer head and neck oncology
  • 简介:Objective:Toobservetherevascularizationandtheopportunityofcross-fingerflap.Methods:Ananimalmodelwasdevelopedtopermitdailymonitoringofneovascularizationoftheflapwithautoradiography,tissuetransparenttechnique,grossobservationandhistologicalexamination.Results:Therevascularizationoftheflapwaschieflyraisedfromthesurroundingtissues.Thepediclesof334cross-fingerflapsofthepatientsweresuccessfullydividedfrom1to5dafteroperations,averagely3.3d.Allofthecasesshowedsatisfatoryresultsaccordingtoafollow-upsurveyof3to72mon.theresultsfurtherprovedthattherevascularizationofthecross-fingerflapshadaccomplishedwithin3d.Conclusions:Itsuggeststhatthedivisionofacrossfingerflapcanbecarriedoutbetweenthe3rdand5thdayafteroperationwithahighdegreeofsafety.

  • 标签: 外科皮瓣 手指损伤 修复术 血液循环