Spinal StenosisInjections, EpiduralSteroidsRadiculopathyLumbar VertebraeTriamcinoloneDecompression, SurgicalInjections, Intra-ArticularSpinal CordSpinal CanalLaminectomyInjectionsSciaticaParamethasoneLumbosacral RegionIntervertebral Disc DisplacementSpondylolisthesisTriamcinolone AcetonideLow Back PainEpidural SpaceCarotid StenosisFluoroscopyAnesthetics, LocalPain MeasurementAortic Valve StenosisSpinal Cord InjuriesBack PainSpinal Nerve RootsTreatment OutcomeLigamentum FlavumInjections, IntralesionalMethylprednisoloneInjections, SpinalSpinal FusionAdrenal Cortex HormonesGlucocorticoidsLidocaineCoronary StenosisBetamethasoneSpinal DiseasesAnti-Inflammatory AgentsRadiography, InterventionalDisability EvaluationTracheal StenosisCoccyxCervical VertebraeSpinal Cord CompressionPainPolyradiculopathyMyelographyMagnetic Resonance ImagingProspective StudiesPain ManagementIntermittent ClaudicationSpondylosisPyloric StenosisRetrospective StudiesMitral Valve StenosisPolydipsiaConstriction, PathologicPulmonary Valve StenosisCarpal Tunnel SyndromeTennis ElbowFollow-Up StudiesFasciitis, PlantarNeedlesTendinopathyNerve BlockTrigger Finger DisorderTime FactorsChalazionOrthopedic ProceduresFailed Back Surgery SyndromeTietze's SyndromeHeelTomography, X-Ray ComputedCarpal JointsFlushingSacrumSacrococcygeal RegionInjections, IntramuscularNeurosurgical ProceduresBursitisWrestlingCauda EquinaProstheses and ImplantsEsophageal StenosisSpineTissue AdhesionsShoulder PainSpinal NervesSpinal Cord DiseasesTibial NeuropathyAnesthesia, SpinalSeverity of Illness IndexDura MaterSurgical Procedures, Minimally InvasiveDouble-Blind MethodChronic PainSaline Solution, Hypertonic