SciaticaIntervertebral Disc DisplacementRadiculopathyPainLow Back PainPiriformis Muscle SyndromeInjections, EpiduralDiskectomyLumbar VertebraePain MeasurementChymopapainBack PainSpinal Nerve RootsNerve Compression SyndromesIntervertebral Disc ChemolysisLumbosacral PlexusChronic PainIntervertebral DiscPain ManagementPolyradiculopathyFibrocartilageCauda EquinaSpinal CanalPeripheral Nervous System NeoplasmsSpinal DiseasesPain Threshold