Spinal Cord CompressionSpinal Cord InjuriesSpinal CordSpinal NeoplasmsParaplegiaThoracic VertebraeSpinal Cord NeoplasmsLaminectomyQuadriplegiaBones of Lower ExtremityCervical VertebraeAcute DiseaseEpidural NeoplasmsEpidural SpaceThrombophlebitisSpinal DiseasesDecompression, SurgicalSpinal Cord DiseasesHematopoiesis, ExtramedullaryMyelographyScheuermann DiseaseRecovery of FunctionMethylprednisoloneSpinal CanalHematoma, Epidural, SpinalMagnetic Resonance ImagingHyperostosisParaparesisRheumatic NoduleOsteochondromaTime FactorsBalloon EmbolectomyOdontoid ProcessBone NeoplasmsEpidural AbscessExostoses, Multiple HereditaryDiphosphonatesArachnoid CystsCordotomyArachnoidTuberculosis, SpinalHemangiomaData CompressionSpinal FusionTreatment OutcomeFractures, SpontaneousSpinal InjuriesSpineNerve Compression SyndromesSpinal FracturesNeurosurgical ProceduresMotor Neurons