Spinal Cord CompressionSpinal NeoplasmsSpinal Cord NeoplasmsSpinal CordSpinal Cord InjuriesLaminectomyDecompression, SurgicalThoracic VertebraeRetrospective StudiesEpidural NeoplasmsCervical VertebraeSpinal Cord DiseasesParaplegiaHematopoiesis, ExtramedullarySpinal DiseasesMyelographyScheuermann DiseaseEpidural SpaceSpinal CanalHematoma, Epidural, SpinalMagnetic Resonance ImagingHyperostosisParaparesisRheumatic NoduleTreatment OutcomeOsteochondromaBalloon EmbolectomyOdontoid ProcessBone NeoplasmsEpidural AbscessExostoses, Multiple HereditaryQuadriplegiaDiphosphonatesArachnoid CystsArachnoidTuberculosis, SpinalHemangiomaPrognosisSpinal FusionData CompressionSpineFractures, Spontaneous