Spinal Cord CompressionSpinal CanalSpinal StenosisCervical VertebraeDecompression, SurgicalSpondylosisSpinal CordLaminectomyLigamentum FlavumSpinal NeoplasmsArnold-Chiari MalformationSpinal Cord InjuriesSpinal Cord NeoplasmsSpinal Cord DiseasesLumbar VertebraeThoracic VertebraeMagnetic Resonance ImagingMyelographyPolyradiculopathyCauda EquinaDecompressionDecompression SicknessSpinal DiseasesEpidural NeoplasmsEpidural SpaceSpinal FusionParaplegiaHematopoiesis, ExtramedullaryNerve Compression SyndromesHematoma, Epidural, SpinalQuadriplegiaScheuermann DiseaseSpinal Nerve RootsIntervertebral Disc DisplacementLumbosacral RegionRadiculopathyTomography, X-Ray ComputedTreatment OutcomeParaparesisSpinal FracturesEpidural AbscessHyperostosisSpineSpinal OsteophytosisRheumatic NoduleNeurosurgical ProceduresTuberculosis, SpinalOsteochondromaLongitudinal LigamentsSpinal InjuriesOdontoid ProcessRecovery of FunctionBalloon EmbolectomyCarotid StenosisArachnoid CystsSemicircular CanalsAortic Valve StenosisArachnoidDura MaterBone NeoplasmsBrown-Sequard SyndromeExostoses, Multiple HereditaryRetrospective StudiesInjections, SpinalDiphosphonatesData CompressionHemangiomaOssification of Posterior Longitudinal LigamentFractures, SpontaneousEar CanalSpinal Cord IschemiaSyringomyeliaCervical AtlasMotor NeuronsIntervertebral DiscSpinal NervesTime FactorsCoronary StenosisTracheal StenosisSacrumMyelitisFractures, CompressionFatal OutcomeDivingKyphosisAnesthesia, SpinalParalysisAtlanto-Axial JointLow Back PainUmbilical CordOssification, HeterotopicPhrenic NerveAnterior Horn CellsConstriction, PathologicDisease Models, AnimalSpondylolisthesisInternal FixatorsStockings, CompressionRats, Sprague-DawleyRoot Canal Preparation