Spinal CordSpinal Cord InjuriesSpinal Cord DiseasesSpinal Cord CompressionSpinal Cord NeoplasmsSpinal Cord IschemiaInjections, SpinalParaplegiaSpinal Nerve RootsSpinal NervesMotor NeuronsSpinal Cord RegenerationSpinal CanalSpinal NeoplasmsCervical VertebraeAnesthesia, SpinalQuadriplegiaThoracic VertebraeSpinal DiseasesUmbilical CordPosterior Horn CellsLaminectomyRats, Sprague-DawleyLumbosacral RegionRecovery of FunctionNerve RegenerationAxonsSpinal StenosisGanglia, SpinalSpinal Cord StimulationLocomotionSpinal FusionSpinal InjuriesAnterior Horn CellsMyelitisCordotomyParalysisMuscular Atrophy, SpinalPainNeuronsHyperalgesiaElectric Stimulation TherapyNeuralgiaDisease Models, AnimalMyelographyElectric StimulationSpineEpidural SpaceAfferent PathwaysUrinary Bladder, NeurogenicHematoma, Epidural, SpinalHindlimbNeurons, AfferentNociceptorsLumbar VertebraeReflexTime FactorsLampreysMotor ActivityAutonomic DysreflexiaInterneuronsPyramidal TractsElectromyographyMagnetic Resonance ImagingPain MeasurementTuberculosis, SpinalMyelin SheathCatsCentral Nervous SystemFetal BloodPhysical StimulationNeurogliaImmunohistochemistryContusionsEvoked Potentials, SomatosensoryBrain StemSpinal CurvaturesOligodendrogliaSpermatic CordSciatic NerveSyringomyeliaMuscle SpasticityEfferent PathwaysStrychnineCauda EquinaSpinal Muscular Atrophies of ChildhoodDecompression, SurgicalParaparesisAnimals, NewbornSpinal FracturesWheelchairsGlial Fibrillary Acidic ProteinCord Blood Stem Cell TransplantationAmyotrophic Lateral SclerosisAstrocytesPain ThresholdAnalgesicsNerve Tissue ProteinsEvoked PotentialsSubstance P