LaminectomySpinal CordSpinal Cord CompressionSpinal Cord InjuriesSpinal StenosisDecompression, SurgicalLumbar VertebraeSpinal Cord DiseasesSpinal CanalSpinal Cord NeoplasmsSpinal NeoplasmsCervical VertebraeThoracic VertebraeLigamentum FlavumSpinal Nerve RootsSpinal FusionSpinal DiseasesEpidural SpaceDura MaterArachnoiditisMyelographyLumbosacral RegionCauda EquinaSpinal OsteophytosisHematoma, Epidural, SpinalIntervertebral Disc DisplacementSpineSpondylolisthesisSacrumParaplegiaInjections, SpinalCervical AtlasSpinal NervesOssification of Posterior Longitudinal LigamentParaparesisFailed Back Surgery SyndromeAnesthesia, SpinalOssification, HeterotopicRadiculopathySyringomyeliaDiskectomyTorsion, MechanicalInternal FixatorsNeurosurgical ProceduresEpidural AbscessMagnetic Resonance ImagingTuberculosis, SpinalKyphosisPolyradiculopathyBack PainSciaticaTissue AdhesionsLongitudinal LigamentsPostoperative ComplicationsArachnoidSpondylosisCadaverTreatment OutcomeArachnoid CystsMeningoceleTabes DorsalisSpinal FracturesIntervertebral Disc DegenerationSpinal InjuriesMuscular Atrophy, SpinalForaminotomyZygapophyseal JointAtlanto-Axial JointLordosisArnold-Chiari MalformationNerve Compression SyndromesRecovery of FunctionSpinal Cord IschemiaGanglia, SpinalOdontoid ProcessDislocationsIntervertebral DiscSynovial CystShear StrengthMotor NeuronsPlatybasiaBiomechanical PhenomenaRats, Sprague-DawleyTomography, X-Ray ComputedLow Back PainForamen Magnum