Patient Outcome AssessmentOutcome Assessment (Health Care)Treatment OutcomeInjections, EpiduralResearch DesignQuality of LifeOutcome and Process Assessment (Health Care)Disability EvaluationSports MedicineProspective StudiesFollow-Up StudiesRetrospective StudiesRisk AssessmentReproducibility of ResultsRandomized Controlled Trials as TopicTime FactorsSeverity of Illness IndexEmpirical ResearchFluoroscopyPatient SatisfactionActivities of Daily LivingSpinal StenosisRecovery of FunctionUnited StatesQuestionnairesSingle-Blind MethodPain MeasurementClinical Trials as TopicPredictive Value of TestsHealth Status IndicatorsIntervertebral Disc DisplacementCohort StudiesRisk FactorsPrognosisPhysical Therapy ModalitiesEducational MeasurementLow Back PainStrokeLumbosacral RegionEvidence-Based MedicinePregnancy OutcomeChronic DiseaseRange of Motion, Articular