腰痛和腰椎间盘突出症(英文)_【ppt课件】

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1、LOWERBACKPAINANDHERNIAOFINTERVERTEBRALDISC腰痛和腰椎间盘突出症StructuralsupportandbalanceforuprightpostureFunctionsoftheSpineProtectionSpinalcordandnerverootsFunctionsoftheSpineInternalorgansFlexibilityofmotioninsixdegreesoffreedomFunctionsoftheSpineLeftandRightSideBendi

2、ngFlexionandExtensionLeftandRightRotationCranial-theheadortowardstheheadCaudal-thetailortowardsthetailAnterior-thefrontsectionortowardsthefrontPosterior-thebacksectionortowardsthebackVentral-thefrontoranteriorsurfaceDorsal-thebackorposteriorsurfaceBasicTerminol

3、ogyCranialCaudalAnteriorPosteriorDorsalVentralVertebralStructuresPediclenotchesSlightNotchDeepNotchIntervertebralForamenIntervertebralforamenNerverootsexitVertebralStructuresBodyPedicleLaminaSuperiorArticularProcessSpinousProcessTransverseProcessVertebralForame

4、nLumbarVertebraeBody-L1toL5progressiveincreaseinmassPedicles-longerandwiderthanthoracic;ovalshapedSpinousprocesses-horizontal,squareshapedTransverseprocesses-smallerthaninthoracicregionSpinalforamen-largetoallowforcaudaequinaandnerverootsIntervertebralforamen-l

5、arge,butwithincreasedincidenceofnerverootcompressionIntervertebralDiscVertebralStructuresEndPlateApophysealRingCartilaginousBonyTheFUNCTIONALUNITofthespineComprisedof:TwoadjacentvertebraeIntervertebraldiscConnectingligamentsTwofacetjointsandcapsulesTheMotionSeg

6、mentFibrocartilaginousjointofthemotionsegmentMakesup¼thelengthofthespinalcolumnPresentatlevelsC2-C3toL5-S1Allowscompressive,tensile,androtationalmotionLargestavascularstructuresinthebodyIntervertebralDiscIntervertebralDiscAnnulusFibrosusOuterportionofthediscLam

7、ellaeGreattensilestrengthMadeupoflamellaeAnnulusFibrosusLayersofcollagenfibersArrangedobliquely30°ReversedcontiguouslayersIntervertebralDiscNucleusPulposusNucleusPulposusInnerstructureGelatinousHighwatercontentResistsaxialforcesIntervertebralDiscLargestavascula

8、rstructureBloodsupplybydiffusionthroughendplatesDamagetothebloodsupplyleadstodegradationofthediscAnatomyandDegenerativeChangeTheVertebralBody(VB)KeyRolesCarry80%oftheaxiallo