RadiculopathyCervical VertebraeSpinal Nerve RootsBrachial Plexus NeuritisPost-Traumatic HeadacheForaminotomyNeck PainIntervertebral DiscDiskectomyManipulation, SpinalOrthotic DevicesPain MeasurementIntervertebral Disc DisplacementPhysical Therapy ModalitiesLumbar VertebraeTreatment OutcomeExercise TherapyTotal Disc ReplacementMagnetic Resonance ImagingSpinal StenosisProspective StudiesSpinal CanalInjections, EpiduralSpondylosisLumbosacral RegionIntervertebral Disc DegenerationLigamentum FlavumSpinal OsteophytosisSciaticaEpidural SpaceElectrodiagnosisLow Back PainNerve Compression SyndromesLaminectomySpinal Cord CompressionPolyradiculopathySacrumSynovial CystHematoma, Epidural, SpinalSpinal DiseasesSpinal FusionZygapophyseal JointDecompression, SurgicalLumbosacral PlexusSpinal Cord Diseases