RadiculopathyLaminectomySpinal Nerve RootsSpinal StenosisLumbar VertebraeCervical VertebraeSpinal Cord CompressionDecompression, SurgicalLigamentum FlavumIntervertebral Disc DisplacementSpinal CanalEpidural SpaceSpinal OsteophytosisLumbosacral RegionSpinal Cord DiseasesDiskectomyCauda EquinaDura MaterSpondylosisHematoma, Epidural, SpinalThoracic VertebraeSpinal FusionSacrumMyelographySciaticaSpinal DiseasesSpondylolisthesisPolyradiculopathySpinal NeoplasmsInjections, EpiduralTotal Disc ReplacementNerve Compression SyndromesIntervertebral DiscForaminotomyArachnoiditisSynovial CystLow Back PainSpinal Cord NeoplasmsZygapophyseal JointPost-Traumatic HeadacheMagnetic Resonance ImagingInternal FixatorsNeurosurgical ProceduresElectrodiagnosisTreatment OutcomeBack PainBrachial Plexus NeuritisCervical AtlasNeck PainPain MeasurementOssification of Posterior Longitudinal LigamentIntervertebral Disc DegenerationFailed Back Surgery SyndromeLumbosacral PlexusPostoperative ComplicationsTorsion, MechanicalParaparesisOssification, HeterotopicSpineSpinal CordSyringomyeliaTomography, X-Ray ComputedParaspinal MusclesParaplegiaSurgical Procedures, Minimally InvasiveEpidural AbscessTissue AdhesionsSpinal Cord InjuriesKyphosisBrachial Plexus NeuropathiesRetrospective StudiesCadaverArachnoidMuscle WeaknessLongitudinal LigamentsNerve BlockSpinal FracturesFluoroscopyParesthesiaArachnoid CystsTabes DorsalisManipulation, SpinalPeripheral Nervous System DiseasesMeningoceleMeningeal CarcinomatosisBursitisTarlov CystsFollow-Up StudiesOrthotic DevicesAtlanto-Axial JointFibrocartilageLameness, AnimalMusculoskeletal ManipulationsPhysical ExaminationArnold-Chiari MalformationLordosisTriamcinoloneOdontoid ProcessPatient PositioningShear Strength