Spinal CordSpinal Cord InjuriesInjectionsInjections, SpinalSpinal NervesAnesthesia, SpinalSpinal Cord DiseasesSpinal Nerve RootsSpinal Cord NeoplasmsSpinal CanalSpinal DiseasesSpinal Cord CompressionSpinal NeoplasmsInjections, IntravenousInjections, IntramuscularSpinal StenosisSpinal FusionInjections, SubcutaneousInjections, IntralesionalInjections, Intra-ArticularSpinal InjuriesMuscular Atrophy, SpinalRats, Sprague-DawleyGanglia, SpinalSpinal Cord IschemiaInjections, IntraperitonealMotor NeuronsInjections, EpiduralSpineParaplegiaThoracic VertebraeInjections, IntraventricularTuberculosis, SpinalInjections, IntradermalDisease Models, AnimalTime FactorsPosterior Horn CellsLaminectomyLumbosacral RegionSpinal CurvaturesPainHematoma, Epidural, SpinalLumbar VertebraeCervical VertebraeInjections, Intra-ArterialHyperalgesiaPain MeasurementSpinal Muscular Atrophies of ChildhoodIntravitreal InjectionsSpinal FracturesInjections, JetSpinal Cord RegenerationInjections, IntraocularAnesthetics, LocalNeuronsTrigeminal Nucleus, SpinalDose-Response Relationship, DrugMicroinjectionsQuadriplegiaLocomotionEpidural SpaceRats, WistarAxonsNociceptorsManipulation, SpinalNeuralgiaRecovery of FunctionElectric StimulationMice, Inbred C57BLMyelographyCatsAnterior Horn CellsReflexHindlimbSpinal PunctureFlow Injection AnalysisMagnetic Resonance ImagingNerve RegenerationCordotomyAfferent PathwaysTreatment OutcomeAnalgesicsNeurons, AfferentBehavior, AnimalPhysical StimulationImmunohistochemistryNeedlesMotor ActivityParalysisMyelitisElectromyographyMorphineLidocaineSubstance Abuse, IntravenousScoliosisSpinal Cord StimulationBrainSperm Injections, IntracytoplasmicDecompression, SurgicalAnimals, Newborn