Intervertebral Disc DisplacementIntervertebral DiscLumbar VertebraeDiskectomyIntervertebral Disc DegenerationDiskectomy, PercutaneousSciaticaIntervertebral Disc ChemolysisChymopapainSpinal DiseasesRadiculopathyLow Back PainTotal Disc ReplacementLumbosacral RegionLaminectomySpinal Nerve RootsBack PainMicrosurgerySacrumMagnetic Resonance ImagingSpinal CanalPain MeasurementZygapophyseal JointDiscitisSpinal OsteophytosisArthroplastySpinal FusionDecompression, SurgicalPolyradiculopathyTreatment OutcomePulsed Radiofrequency TreatmentInjections, EpiduralTemporomandibular Joint DiscSpinal StenosisLongitudinal LigamentsDisability EvaluationImaginal DiscsNerve Compression SyndromesProsthesis ImplantationFibrocartilageCompressive StrengthCollagen Type IXSurgical Procedures, Minimally InvasiveWeight-BearingLordosisEpidural SpaceProstheses and ImplantsMoxibustionDura MaterCauda EquinaOsteochondritisFollow-Up StudiesArthroplasty, ReplacementProspective StudiesSpineCervical VertebraeBiomechanical PhenomenaTabes DorsalisMyelographySpondylosisRecovery of FunctionSpondylolisthesisOptic DiskPainOutcome Assessment (Health Care)Range of Motion, ArticularEndoscopyReoperationFluoroscopyPatient SatisfactionChronic PainPostoperative ComplicationsNeurosurgical ProceduresLaser TherapyOrthopedic ProceduresCadaverPhysical Therapy ModalitiesPostoperative PeriodPain, PostoperativeObserver VariationRemission, SpontaneousIliac ArteryWingQuestionnairesRetrospective StudiesSportsMatrix Metalloproteinase 3Tomography, X-Ray ComputedCase-Control StudiesSteroidsNeurologic ExaminationFinlandPostureWorkloadGermanyPreoperative CareGenetic Predisposition to DiseaseTime FactorsRisk FactorsOccupational Diseases