Spinal StenosisDecompression, SurgicalLumbar VertebraeLaminectomyDecompressionSpinal CanalDecompression SicknessGraves OphthalmopathyMicrovascular Decompression SurgeryOrbitLumbosacral RegionRadiculopathySpondylolisthesisSpinal CordLigamentum FlavumSpinal FusionTreatment OutcomeInjections, EpiduralPolyradiculopathyIntermittent ClaudicationSpondylosisMagnetic Resonance ImagingSciaticaPain MeasurementDisability EvaluationNeurosurgical ProceduresIntervertebral Disc DisplacementSpinal Nerve RootsProspective StudiesMyelographyLow Back PainProstheses and ImplantsRetrospective StudiesCauda EquinaOrthopedic ProceduresSpinal Cord CompressionBack PainSpinal Cord InjuriesSpinal DiseasesCarotid StenosisDura MaterDiagnostic Techniques, NeurologicalAortic Valve StenosisSurgical Procedures, Minimally InvasiveFollow-Up StudiesSteroidsPostoperative ComplicationsLipomatosisInternal FixatorsCervical VertebraeAnesthetics, LocalNerve Compression SyndromesWalkingCoronary StenosisPainRecovery of FunctionTomography, X-Ray ComputedSeverity of Illness IndexTracheal StenosisSacrumSpinal NervesDivingInjections, SpinalThoracic VertebraeOutcome Assessment (Health Care)Spinal Cord DiseasesEpidural SpaceSpineDiskectomyPhysical Therapy ModalitiesPatient SatisfactionConstriction, PathologicSpinal NeoplasmsPyloric StenosisMitral Valve StenosisBiomechanical PhenomenaPulmonary Valve StenosisIntervertebral Disc DegenerationOrthopedic Fixation DevicesTime FactorsFailed Back Surgery SyndromePredictive Value of TestsIntervertebral DiscTrigeminal NeuralgiaSpinal OsteophytosisZygapophyseal JointAnesthesia, SpinalSpinal Cord NeoplasmsTissue AdhesionsQuestionnairesFluoroscopyArnold-Chiari MalformationCohort StudiesQuality of LifeReoperationSpinal FracturesSyringomyeliaMotor NeuronsPost-Dural Puncture HeadacheOsteoarthritis, Spine