JointsKnee JointJoint DiseasesFinger JointAnkle JointHip JointTarsal JointsWrist JointDelayed DiagnosisJoint CapsuleSacroiliac JointEarly DiagnosisPrenatal DiagnosisSensitivity and SpecificityTemporomandibular Joint DisordersJoint InstabilityMetatarsophalangeal JointFoot JointsShoulder JointDiagnosisJoint ProsthesisRetrospective StudiesOsteoarthritisTemporomandibular Joint DiscAcromioclavicular JointArthritis, RheumatoidSynovial FluidSternoclavicular JointDiagnostic ErrorsTomography, X-Ray ComputedReproducibility of ResultsCartilage, ArticularInjections, Intra-ArticularTreatment OutcomeMagnetic Resonance ImagingSynovitisTime FactorsProspective StudiesPredictive Value of TestsArthritis, InfectiousCarpometacarpal JointsRange of Motion, ArticularFollow-Up StudiesBiopsyBiomechanical PhenomenaDiagnosis, Computer-AssistedSynovial MembraneNursing DiagnosisArthrographyRisk FactorsSeverity of Illness IndexArthralgiaPrognosisArthritis, ExperimentalDislocationsOsteoarthritis, KneePreimplantation DiagnosisCarpal JointsInfant, NewbornPolymerase Chain ReactionCohort StudiesPregnancyBiological MarkersAge FactorsCase-Control StudiesFatal OutcomeBiopsy, NeedleIncidencePatellofemoral JointDisease ProgressionPrevalenceArthroplasty, ReplacementWeight-BearingFetal DiseasesMovementAcute DiseaseSyndromePhysical ExaminationUnited StatesEnzyme-Linked Immunosorbent AssayLigaments, ArticularObserver VariationPainTemporomandibular Joint Dysfunction SyndromeFalse Positive ReactionsProsthesis-Related InfectionsAlgorithmsROC CurveUltrasonographyContractureFalse Negative ReactionsStifleAntirheumatic AgentsClinical Laboratory TechniquesAnkylosisArthroscopyQuestionnairesUltrasonography, PrenatalChronic DiseaseCross-Sectional Studies