Spinal Cord InjuriesSpinal CordInflammationSpinal Cord DiseasesSpinal Cord CompressionSpinal Cord NeoplasmsSpinal Cord IschemiaInjections, SpinalParaplegiaSpinal Nerve RootsSpinal NervesInflammation MediatorsMotor NeuronsSpinal Cord RegenerationDisease Models, AnimalSpinal CanalRats, Sprague-DawleySpinal NeoplasmsCervical VertebraeAnesthesia, SpinalQuadriplegiaThoracic VertebraeSpinal DiseasesUmbilical CordPosterior Horn CellsLaminectomyLumbosacral RegionGanglia, SpinalRecovery of FunctionMice, Inbred C57BLNerve RegenerationAxonsSpinal StenosisLocomotionMyelitisSpinal Cord StimulationSpinal FusionSpinal InjuriesPainAnterior Horn CellsHyperalgesiaTime FactorsCordotomyParalysisNeuronsMice, KnockoutMuscular Atrophy, Spinal