三焦点牵张成骨在下颌骨缺损中应用的实验分析

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1、安徽医科大学硕士学位论文TheExperientmentalStudyofPromotiveEffectoftheInlayTri．．focusDistractionOsteogenesisinMandibleDefectAbstractMandibulardefectisthecommonesttypeofthehardtissuedefectsintheoralandmaxillofacialdomains．Theimplantofprosthesisandthetransplantationofvariantorautoge

2、nousbonewerethetraditionaryreconstructionmethods．Howevegthesemethodsallhavesomedeficiencyinevitably．Distractionosteogenesis(DO)isanewtechnicinsurgery．Atfirst,itwasusedinlongbonedefects．In1992，McCarthyusedthismethodinoralandmaxillofacialdefects．Thetechnichadagreatdevel

3、opmentinthereconstructionofthemandibulardefects．Butitalsohassomeshortcomingssuchlikethepoorbonequality,longtherapeutictimeandgreatpathy．Asthedevelopmentofthefunctionalitysurgeryandthehi曲lifequalityrequest，theDOspeed，thebonequalityandthedesignofthemachineneedmoreimprov

4、ement．Theinlaytri—focusdistractionosteogenesisisinprogressinDOexceptoutsideinfluentialfactors．ThecharacteristicoftheDOspeed，shortedtherapeutictimeandtheinlaydesignmakesthepatients’lifequalityhi曲．Objective1．Weinvestigatedanddesignedthedistractorinexvivoandestimateditsp

5、ossibility．2．Toestablishanefficientinlaytri—focusdistractionosteogenesis(D0)modeltoconfirmthismethodquicklyandexcellent．Andprepareforthefurtherstudy．4安徽医科大学硕士学位论文Methods1．Designmentoftheinlaytri—focusdistractorinexvivoWedesignedthedistractor嬲theinternationalDOstandard

6、tochoosethedistractor’Saxle．Thedistractorhastwotransportdiscsandbi—spiralmarkinginaxle．Whenyourevolvetheaxle，thetwodiscsmakethesamedistance．2。Toestablishanefficientinlaytri-focusdistractionosteogenesis(DO)modelThestudygroupdesignedtheinlaytri-focusdistractorandelabora

7、tedbythestandardofinternational．Theprocessusedthebilateralmandiblesself-comparisonmethodontheordinaryexperimentgoat．Aftertheconsolidationperiod，thegoatsbilateralmandiblesweretakentoundergoX-rayimageology，microanatomydetection，scleroustissueslice，electronmicroscopescan

8、ning，achromycinfluorescentlabelingandbonedensitometry．Results1．ThedistractorcoherecompactandwasoperatedsimplyfollowedLilizar