Acute PainPainPain MeasurementPain ManagementLower ExtremityPain, PostoperativePain ClinicsUpper ExtremityPain ThresholdChronic PainAnalgesicsExtremitiesAnalgesics, OpioidAnalgesiaPain, IntractablePain PerceptionLow Back PainAnesthesia Department, HospitalBack PainAcute DiseaseFacial PainHyperalgesiaNeck PainNeuralgiaAbdominal PainAnalgesics, Non-NarcoticPelvic PainAnalgesia, Patient-ControlledUnited States Department of DefenseNociceptorsLegMorphinePain, ReferredChronic DiseaseRecovery RoomTreatment OutcomeShoulder PainToothacheMusculoskeletal PainAcupunctureArmAmputationAnesthetics, LocalLeg InjuriesBones of Upper ExtremityInjections, SpinalCyclohexanecarboxylic AcidsKetoprofenHot TemperatureAnti-Inflammatory Agents, Non-SteroidalDiclofenacCryingTime FactorsAnalgesia, EpiduralPeripheral Nervous System DiseasesProspective StudiesFormaldehydeNarcotic AntagonistsKetorolacTranscutaneous Electric Nerve StimulationArm InjuriesKetamineLidocaineNerve BlockAcetaminophenSkin Physiological PhenomenaQuestionnairesBones of Lower ExtremitySpinal CordDouble-Blind MethodGanglia, SpinalAnesthesiologyCapsaicinNociceptive PainBehavior, AnimalSoft Tissue NeoplasmsDexmedetomidineSarcomaLeg BonesHerpes ZosterAnesthetics, DissociativeBuprenorphineSeverity of Illness IndexAnemia, Sickle CellWounds and InjuriesCarrageenanCold TemperatureInfant BehaviorPeripheral Vascular DiseasesComplex Regional Pain SyndromesAminesMagnetic Resonance ImagingIschemiaRats, Sprague-DawleyPosterior Horn CellsMusculoskeletal DiseasesLimb SalvagePhysical StimulationRetrospective StudiesInflammation