RadiculopathyCervical VertebraeSpinal Nerve RootsBrachial Plexus NeuritisPost-Traumatic HeadacheForaminotomyNeck PainDiskectomyManipulation, SpinalOrthotic DevicesIntervertebral DiscPain MeasurementPhysical Therapy ModalitiesTreatment OutcomeExercise TherapyLumbar VertebraeIntervertebral Disc DisplacementMagnetic Resonance ImagingProspective StudiesSpinal StenosisSpinal CanalInjections, EpiduralTotal Disc ReplacementSpondylosisLumbosacral RegionLigamentum FlavumSpinal OsteophytosisElectrodiagnosisSciaticaEpidural SpaceNerve Compression SyndromesLow Back PainLaminectomySpinal Cord CompressionPolyradiculopathySynovial CystHematoma, Epidural, SpinalSacrumLumbosacral PlexusZygapophyseal Joint