Spinal CanalSpinal CordSpinal StenosisSpinal Cord CompressionSpinal Cord InjuriesSemicircular CanalsCervical VertebraeLaminectomyLumbar VertebraeThoracic VertebraeEar CanalSpinal Cord DiseasesLigamentum FlavumSpinal DiseasesMyelographySpinal NeoplasmsDecompression, SurgicalOperating RoomsSpinal FracturesRoot Canal PreparationSpinal FusionSpinal Cord NeoplasmsSpondylosisSpinal Nerve RootsEpidural SpaceCauda EquinaSpineLongitudinal LigamentsRadiculopathyMagnetic Resonance ImagingLumbosacral RegionPolyradiculopathyArnold-Chiari MalformationSacrumIntervertebral Disc DisplacementRoot Canal IrrigantsDura MaterDental Pulp CavitySpinal InjuriesTomography, X-Ray ComputedInjections, SpinalInternal FixatorsSpondylolisthesisRoot Canal Filling MaterialsSpinal NervesAnesthesia, SpinalSpinal OsteophytosisAxisErysipeloidCervical AtlasTractionOssification of Posterior Longitudinal LigamentAchondroplasiaAnal CanalQuadriplegiaIntervertebral DiscTooth ApexNeck InjuriesSubarachnoid SpaceKyphosisNeurilemmomaVertebroplastyScoliosisRibsDislocationsSyringomyeliaBack PainNerve Compression SyndromesWounds, StabNeurosurgical ProceduresForeign-Body MigrationAngiolipomaBone ScrewsPeripheral Nervous System NeoplasmsMeningesEpidural NeoplasmsZygapophyseal JointMuscular Atrophy, SpinalCadaverAtlanto-Axial JointTreatment OutcomeMeningiomaSynovial CystBone Diseases, DevelopmentalDiskectomyLow Back PainSpinal Cord IschemiaOrthopedic Procedures