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《新型髖臼后壁可塑形解剖板治療髖臼后壁骨折合并髖臼唇損傷的生物力學(xué)分析》由會員上傳分享,免費(fèi)在線閱讀,更多相關(guān)內(nèi)容在行業(yè)資料-天天文庫。
1、萬方數(shù)據(jù)英文摘要wallfracturesincorporatewithacetabularlabraltearinjurys.ThisexperimentistoprovidetheexperimentalbasisofthenewtypeposteriorwallplasticityplatedesignedbyProfessorFengWenlingforacetabularposteriorwallfracturesincorporatewithacetabularlabraltearinjurysthroughthe
2、biomechanicalcomparisonandresearchonthemodel.Methods:Thisexperimentchooses9formalinsolutionsoakingfreshadultpelvisspecimens,including1/3proximalfemoralshaft,withthehelpofthegrossobservationandX—raytoexcludecongenitaldeformity,osteoporosisandbonedisease.Thespecimensw
3、eresealedatthetemperatureof-20。Crefrigeratorwiththedoublepreservationbags,andtakenout24hoursbeforetheexperiment,andnaturalthawedatroomtemperature,andthensawedsacralandpubicsymphysispelvissincethemediansagittalplane,anddividedintoabouttwofreshsemipelvisspecimens,elim
4、inatedthesofttissueofsurroundingspecimens,andnumberedthespecimens.Thenmadethepelvisinthesinglefootstandingposition,thenimitatethehumanhipflexion900,adductionandabductionandrotationinneutralposition.AccordingtotheexperimentalmethodsofOlson,startwiththelinebetweenstan
5、dingtopofacetabulumandacetabularcenterline,alongtheacetabularlabrum,downthearcof400forosteotomyontheedge,tothearcof900forosteotomylowermargin1ine,tookthearcof50。ofarticularsurfaceoftheposteriorwalllongitudinallyinto3equalparts,taketheforeign1/3astheosteotomyedge1ine
6、.First.usetheKirschnerwiretodilllcontinuouslyaccordingtothepredeterminedosteotomylinefoecarefulnottodrilldeep),andthenusechiseltotruncatetheacetabularlabrum,makethemodelofacetabularposteriorwall1/3fracturesincorporatewithacetabularlabraltearinjurys,andthendividedint
7、othreegroupsrandomly,ThefractureswerefixedwithnewtypeposteriorwallplasticityplateinAandBgroup,anduseabsorbablesuturetosewuptheacetabularlabraltearinAgroup,andwithcommonfractureplateinCgroup.Thenconductthebiomechanicalexperiment,includingaxialcompressiontestandloadte
8、stofdislocation.Thelongitudinaldisplacements,loadingoffailedintemalfixationandaxialstiffness,andtheloadingswhenthefemoralheadS4萬方數(shù)據(jù)英文摘要dis