Spinal CordSpinal Nerve RootsSpinal Cord InjuriesGanglia, SpinalSpinal Cord DiseasesSciatic NerveGangliaNerve Compression SyndromesSpinal Cord CompressionSpinal Cord NeoplasmsSpinal NervesPeripheral NervesRetinal Ganglion CellsLumbosacral RegionNeurons, AfferentNerve RegenerationInjections, SpinalLumbar VertebraeGanglia, SympatheticAxonsNerve FibersCervical VertebraeSciaticaRats, Sprague-DawleyLumbosacral PlexusNerve BlockBasal GangliaNeuronsGanglia, AutonomicGanglia, SensorySpinal CanalIntervertebral Disc DisplacementTrigeminal GanglionSpinal Cord IschemiaCauda EquinaMotor NeuronsLaminectomySpinal StenosisOptic NerveSacrumEpidural SpaceSensory Receptor CellsPeripheral Nerve InjuriesHyperalgesiaNeuralgiaGanglia, ParasympatheticMyelographyParaplegiaNociceptorsPainSpinal DiseasesNerve Growth FactorsSpinal NeoplasmsNerve CrushTibial NerveElectric StimulationPosterior Horn CellsPeripheral Nervous System DiseasesThoracic VertebraeNeural ConductionTrigeminal NerveDecompression, SurgicalSpinal Cord RegenerationPain MeasurementMagnetic Resonance ImagingSural NerveNerve Growth FactorTooth RootStellate GanglionCapsaicinNerve Tissue ProteinsSpinal FusionDisease Models, AnimalAction PotentialsAxotomyNerve EndingsNodose GanglionImmunohistochemistryDiskectomyCalcitonin Gene-Related PeptideFacial NervePeripheral Nervous System NeoplasmsAnesthesia, SpinalDura MaterQuadriplegiaNerve Fibers, MyelinatedSubstance PMyelin SheathTime FactorsCells, CulturedChick EmbryoRecovery of FunctionCervical PlexusPeripheral Nervous SystemSciatic NeuropathyRhizotomyPain ThresholdUmbilical CordSpiral GanglionCats