Osteoarthritis, KneeKnee JointOsteoarthritisKnee InjuriesKneeViscosupplementsArthralgiaMenisci, TibialOsteoarthritis, HipBone MalalignmentCartilage, ArticularPainPain MeasurementArthroplasty, Replacement, KneeKnee ProsthesisSeverity of Illness IndexMagnetic Resonance ImagingInjections, Intra-ArticularTibiaViscosupplementationOsteophyteRange of Motion, ArticularWeight-BearingPatellaCohort StudiesRisk FactorsMuscle StrengthArthrographyGaitOsteoarthritis, SpineDisease ProgressionFemurSynovial FluidTreatment OutcomeQuadriceps MuscleAnterior Cruciate LigamentDisability EvaluationHand JointsBiomechanical PhenomenaShoesJoint InstabilityHyaluronic AcidSynovitisSynovial MembraneChondrocytesHip JointArthroscopyFinger JointWalkingMatrilin ProteinsFoot OrthosesCartilage Oligomeric Matrix ProteinExercise TherapyCanesLongitudinal StudiesShort-Wave TherapyPain ManagementAnti-Inflammatory Agents, Non-SteroidalPopliteal CystCartilage DiseasesBone Marrow DiseasesProspective StudiesMedial Collateral Ligament, KneeCollagen Type IIDouble-Blind MethodLigaments, ArticularRecovery of FunctionJoint Deformities, AcquiredCartilageMud TherapyStifleCross-Sectional StudiesArthroplasty, Replacement, HipFollow-Up StudiesBody Mass IndexReproducibility of ResultsPatellofemoral JointArthritis, RheumatoidPrevalenceQuestionnairesOrthotic DevicesKnee DislocationQuality of Life