Injections, EpiduralSpinal StenosisSteroidsRadiculopathyEpendymaTriamcinoloneLumbar VertebraeSpinal CordSpinal CanalAnesthetics, LocalSciaticaEpidural SpaceLidocaineFluoroscopyLumbosacral RegionLow Back PainIntervertebral Disc DisplacementSyringomyeliaBack PainRadiography, InterventionalBetamethasoneHaversian SystemFlushingWrestlingAdrenal Cortex HormonesPain MeasurementSpinal Nerve RootsSpinal Cord InjuriesDecompression, SurgicalGlucocorticoidsMethylprednisoloneInjections, Intra-ArticularTreatment OutcomePain ManagementTriamcinolone AcetonideAnti-Inflammatory AgentsPain ClinicsLaminectomyCervical VertebraeInjectionsParamethasone