RadiculopathyCervical VertebraeSpinal Nerve RootsBrachial Plexus NeuritisPost-Traumatic HeadacheForaminotomyNeck PainDiskectomyManipulation, SpinalOrthotic DevicesIntervertebral DiscPain MeasurementPhysical Therapy ModalitiesTreatment OutcomeExercise TherapyLumbar VertebraeIntervertebral Disc DisplacementMagnetic Resonance ImagingSpinal StenosisProspective StudiesSpinal CanalInjections, EpiduralTotal Disc ReplacementSpondylosisLumbosacral RegionLigamentum FlavumSpinal OsteophytosisElectrodiagnosisEpidural SpaceSciaticaNerve Compression SyndromesLaminectomyLow Back PainSynovial CystSpinal Cord CompressionPolyradiculopathyHematoma, Epidural, SpinalSacrumLumbosacral Plexus