Pain MeasurementTreatment OutcomeVisual Analog ScalePainPain, PostoperativeVisual CortexEvoked Potentials, VisualVisual PerceptionVisual AcuityProspective StudiesSeverity of Illness IndexOsteoarthritis, KneeDisability EvaluationQuality of LifeDouble-Blind MethodVisual FieldsOutcome Assessment (Health Care)Knee InjuriesRecovery of FunctionQuestionnairesVisual PathwaysGlasgow Outcome ScaleFollow-Up StudiesTime FactorsReproducibility of ResultsRange of Motion, ArticularArthroscopyLumbar VertebraePatient SatisfactionAnesthetics, LocalRetrospective StudiesAnalgesics, OpioidPsychometricsActivities of Daily LivingOsteoarthritis, HipKnee JointAnalgesia, Patient-ControlledSpinal StenosisArthralgiaAnalgesia, EpiduralPruritusLidocaineAnalysis of VarianceGlasgow Coma ScaleSingle-Blind MethodPain ManagementInjections, Intra-ArticularAnterior Cruciate LigamentCross-Over StudiesAnesthesia, LocalCross-Cultural ComparisonAnalgesiaOrthopedic ProceduresPostoperative ComplicationsVertebroplastyArthroplasty, Replacement, KneePattern Recognition, VisualBupivacaineAnalgesicsLow Back PainIntervertebral Disc DisplacementPhotic StimulationTramadolMagnetic Resonance ImagingTranslationsMorphineAnkle InjuriesSpinal FusionCohort StudiesJoint InstabilityPredictive Value of TestsAnalgesia, ObstetricalDiskectomyFractures, CompressionFatiguePilot ProjectsFibromyalgiaPrognosisBack PainNerve BlockChronic DiseaseRadiculopathyStatistics, NonparametricKetorolacHealth Status IndicatorsArthroplasty, Replacement, HipReoperationBone ScrewsFentanylAcupuncture AnalgesiaFemoracetabular ImpingementHealth StatusVisual Field TestsVision DisordersSpinal FracturesHip JointMeperidineBrain InjuriesAnalgesics, Non-NarcoticPregnancy Outcome