Spinal Cord IschemiaSpinal CordParaplegiaSpinal Cord InjuriesIschemiaAortic Aneurysm, ThoracicParaparesisCerebrospinal Fluid PressureConstrictionReperfusion InjuryAorta, ThoracicReperfusionBlood Vessel Prosthesis ImplantationAortographyRabbitsInjections, SpinalSubclavian ArteryInfarctionSpinal Cord DiseasesBrain IschemiaParaparesis, SpasticMonitoring, IntraoperativeEvoked Potentials, SomatosensoryMyocardial IschemiaThoracic ArteriesTime FactorsSpinal Cord CompressionAortic Aneurysm, AbdominalSpinal Cord NeoplasmsDrainageMotor NeuronsEvoked Potentials, MotorDisease Models, AnimalIschemic PreconditioningAorta, AbdominalNeuroprotective AgentsNeurologic ExaminationAortic DiseasesEndovascular ProceduresHindlimbHypothermia, InducedBlood Vessel ProsthesisPostoperative ComplicationsCerebrospinal FluidRats, Sprague-DawleyVascular Surgical ProceduresAortic AneurysmRegional Blood FlowTreatment OutcomeRandom AllocationThoracotomySpinal Nerve RootsNeuronsTomography, X-Ray ComputedAngioplastyAneurysm, DissectingIntraoperative ComplicationsSpinal NervesEmbolismIliac ArteryStentsSpinal Cord RegenerationIn Situ Nick-End LabelingMalondialdehydeAortic RuptureAnastomosis, SurgicalSpinal CanalSpinal NeoplasmsCervical VertebraeImmunohistochemistryRetrospective StudiesQuadriplegiaRecovery of FunctionThoracic VertebraeAnesthesia, SpinalProsthesis DesignSpinal DiseasesUmbilical CordLaminectomyPosterior Horn CellsLumbosacral RegionAxons