Osteoarthritis, KneeKnee JointOsteoarthritisArthroplasty, Replacement, KneeKneePainKnee InjuriesOsteoarthritis, HipKnee ProsthesisArthralgiaPain MeasurementCartilage, ArticularPatellaPain ManagementRange of Motion, ArticularMenisci, TibialTibiaAnterior Cruciate LigamentOsteophyteChronic PainWeight-BearingSeverity of Illness IndexPain, PostoperativeBiomechanical PhenomenaQuadriceps MuscleTreatment OutcomeArthroscopyPopliteal CystJoint InstabilityPatellofemoral JointBone MalalignmentOsteoarthritis, SpineHand JointsJoint DiseasesKnee DislocationPain ThresholdCartilage DiseasesSynovial FluidGaitInjections, Intra-ArticularMagnetic Resonance ImagingSynovitisSynovial MembraneDisability EvaluationArthrographyMedial Collateral Ligament, KneeBack PainLow Back PainPatellofemoral Pain SyndromeHip JointPosterior Cruciate LigamentFollow-Up StudiesRecovery of FunctionChondrocytesPain, ReferredProspective StudiesMuscle StrengthAnti-Inflammatory Agents, Non-SteroidalWalkingExercise TherapyArthroplasty, Replacement, HipMusculoskeletal PainDisease ProgressionFinger JointPatellar LigamentLigaments, ArticularNeck PainQuestionnairesPain, IntractableAbdominal PainStiflePain PerceptionArthritis, RheumatoidReproducibility of ResultsChondrocalcinosisFemur