Spinal CordSpinal Nerve RootsSpinal Cord InjuriesSpinal Cord DiseasesSpinal Cord CompressionSpinal Cord NeoplasmsNerve Compression SyndromesSciatic NerveSpinal NervesLumbar VertebraeLumbosacral RegionInjections, SpinalPeripheral NervesCervical VertebraeNerve BlockLumbosacral PlexusSciaticaSpinal CanalSpinal Cord IschemiaNerve RegenerationIntervertebral Disc DisplacementCauda EquinaLaminectomyNerve FibersSpinal StenosisSacrumEpidural SpaceMotor NeuronsMyelographyParaplegiaSpinal DiseasesOptic NerveGanglia, SpinalSpinal NeoplasmsAxonsTibial NerveThoracic VertebraeSpinal Cord RegenerationDecompression, SurgicalRats, Sprague-DawleyTooth RootSpinal FusionTrigeminal NervePeripheral Nerve InjuriesSural NerveDiskectomyMagnetic Resonance ImagingPeripheral Nervous System NeoplasmsAnesthesia, SpinalFacial NerveQuadriplegiaElectric StimulationDura MaterNeuralgiaNerve CrushPosterior Horn CellsRecovery of FunctionNerve EndingsPainUmbilical CordPain MeasurementCervical PlexusMedian NerveNeural ConductionLow Back PainParalysisBrachial PlexusPolyradiculopathyHyperalgesiaNeurons, AfferentNerve Growth FactorsIntervertebral DiscDisease Models, AnimalLocomotionFluoroscopyUlnar NerveNerve Fibers, MyelinatedPhrenic NerveSpinal Cord StimulationSpineReflexSpinal InjuriesFemoral NerveAnterior Horn CellsElectric Stimulation TherapyPeripheral Nervous System DiseasesEvoked Potentials, SomatosensorySacrococcygeal RegionElectromyographyCordotomyMyelin SheathNeuronsMyelitisThoracic NervesNerve TissueAfferent PathwaysNerve Growth FactorNeurologic ExaminationMeningesEpidural Neoplasms