新型髋臼后壁可塑形解剖板治疗髋臼后壁骨折合并髋臼唇损伤的生物力学分析

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1、万方数据英文摘要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，andtheloadingswhenthefemoralheadS4万方数据英文摘要dis