Spinal CordCervical VertebraeSpinal Cord InjuriesSpinal CanalSpinal Cord CompressionSpinal Cord DiseasesSpinal Cord NeoplasmsQuadriplegiaSpinal InjuriesPhrenic NerveSpinal StenosisSpondylosisSpinal Nerve RootsLaminectomyForelimbMyelographyMyelitisAnterior Horn CellsSpinal DiseasesMotor NeuronsInjections, SpinalNeckParalysisSpinal NeoplasmsRecovery of FunctionMagnetic Resonance ImagingSpinal NervesSpinal FusionAnesthesia, SpinalNeck InjuriesContusionsRespiratory ParalysisLongitudinal LigamentsPyramidal TractsRats, Sprague-DawleyKlippel-Feil SyndromeRed NucleusEpidural AbscessSpinal Cord StimulationDecompression, SurgicalThoracic VertebraeArnold-Chiari MalformationTrigeminal Caudal NucleusEcho-Planar ImagingElectromyographyDura MaterNerve TissuePosterior Horn CellsTrigeminal Nucleus, SpinalAxonsDiaphragmAfferent PathwaysSpinal OsteophytosisElectric Stimulation TherapySyringomyeliaArmMedulla OblongataNerve RegenerationMuscular Atrophy, SpinalNeuronal Tract-TracersBrain StemEpidural SpaceNeuromaElectric StimulationSpinal Cord IschemiaGanglia, SpinalNeurologic ExaminationAutonomic DysreflexiaInfarctionReticular FormationDisease Models, AnimalLocomotionFunctional LateralityHandRadiculopathyElectrodes, ImplantedNeuronal PlasticityEpendymomaEfferent PathwaysNeck PainNerve Fibers, MyelinatedMovementTime FactorsMicrosurgeryParaplegiaRolipramCatsTuberculosis, SpinalSpineNeural PathwaysNeurilemmomaNeurosurgical ProceduresChondroitin ABC LyaseGlossitisReflexDog DiseasesCerebrospinal FluidInjury Severity ScoreNeuronsDiffusion Magnetic Resonance Imaging