Spinal Cord CompressionSpinal FusionLumbar VertebraeInternal FixatorsSpinal CordCervical VertebraeSpinal NeoplasmsSpinal Cord InjuriesMyelographySpinal Cord NeoplasmsBone TransplantationLaminectomyThoracic VertebraeSpinal DiseasesBone ScrewsSpondylolisthesisSpinal Cord DiseasesDecompression, SurgicalSpinal CanalEpidural NeoplasmsIntervertebral Disc DisplacementParaplegiaHematopoiesis, ExtramedullaryDiskectomySpinal StenosisEpidural SpaceMagnetic Resonance ImagingSpondylosisIntervertebral Disc DegenerationIntervertebral DiscScheuermann DiseaseHematoma, Epidural, SpinalQuadriplegiaOrthopedic Fixation DevicesTreatment OutcomeLongitudinal LigamentsIliumSurgical Procedures, Minimally InvasiveSpineTuberculosis, SpinalParaparesisHyperostosisSpinal OsteophytosisRheumatic NoduleEpidural AbscessOsteochondromaBalloon EmbolectomyRecovery of FunctionRetrospective StudiesRadiculopathyProstheses and ImplantsOdontoid ProcessSpinal Nerve RootsArachnoid CystsBone NeoplasmsExostoses, Multiple HereditaryTomography, X-Ray ComputedDiphosphonatesArachnoidInjections, SpinalSpinal FracturesSpinal InjuriesLumbosacral RegionNeurosurgical ProceduresHemangiomaSacrumProsthesis ImplantationPain MeasurementPostoperative ComplicationsData CompressionBone PlatesKetonesSpinal Cord IschemiaMembrane FusionMotor NeuronsFractures, SpontaneousPseudarthrosisBack PainNerve Compression SyndromesSpinal NervesSpinal CurvaturesCell FusionTime FactorsLordosisMyelitisTitaniumAnesthesia, SpinalBone SubstitutesUmbilical CordWeight-BearingPhrenic NerveAnterior Horn CellsFatal OutcomeBiomechanical PhenomenaCadaverParalysisDiscitisStockings, CompressionCalcium PhosphatesFollow-Up Studies