Intervertebral DiscIntervertebral Disc DisplacementDecompression, SurgicalIntervertebral Disc DegenerationLumbar VertebraeFibrocartilageDiskectomyLumbosacral RegionSciaticaDiskectomy, PercutaneousLow Back PainDecompressionParamethasoneDecompression SicknessMagnetic Resonance ImagingInjections, EpiduralSpinal Cord CompressionIntervertebral Disc ChemolysisSpinal DiseasesLaminectomyPolyradiculopathySpinal StenosisCervical VertebraeSpineSpinal OsteophytosisEpidural AbscessHematoma, Epidural, SpinalThoracic VertebraeRadiculopathyNerve Compression SyndromesSacrumCompartment SyndromesCadaverSpinal FusionParaparesisTreatment OutcomeBiomechanical PhenomenaTuberculosis, SpinalCarpal Tunnel SyndromeThoracic Outlet SyndromeAggrecansCompressive StrengthNotochordNeurosurgical ProceduresChymopapainDiscitisWeight-BearingParaplegiaSpinal NeoplasmsSpinal Cord DiseasesMyelographySubclavian VeinCollagen Type IIDivingSpondylolisthesisHematoma, Subdural, SpinalTomography, X-Ray ComputedCraniotomyScoliosisSpinal CanalRetrospective StudiesProteoglycansCollagen Type IXGlycosaminoglycansNeurologic ExaminationSpondylosisRecovery of FunctionInternal FixatorsFollow-Up StudiesBack PainInjections, Intra-ArticularExtracellular Matrix