Lower ExtremityKnee JointKneeOsteoarthritis, KneeArthroplasty, Replacement, KneeKnee InjuriesLegKnee ProsthesisUpper ExtremityExtremitiesAmputationLeg InjuriesBones of Lower ExtremityPeripheral Vascular DiseasesLeg BonesRange of Motion, ArticularBiomechanical PhenomenaIschemiaGaitVascular Surgical ProceduresTreatment OutcomeLimb SalvagePeripheral Arterial DiseaseTibiaVeinsWalkingAnterior Cruciate LigamentArmMuscle StrengthWeight-BearingFemoral VeinVascular PatencyAthletic InjuriesIntermittent ClaudicationAnkle JointPopliteal VeinRecovery of FunctionLeg UlcerTibial ArteriesArterial Occlusive DiseasesRetrospective StudiesPainFoot BonesKnee DislocationReoperationFemoral ArteryVenous ThrombosisFoot InjuriesAnkleThighFollow-Up StudiesProspective StudiesPopliteal ArteryTime FactorsArthralgiaDiabetic FootPain MeasurementShoesGangreneArm InjuriesBone MalalignmentMuscle, SkeletalPatellaUltrasonography, Doppler, DuplexMovementAtherectomyToesPostureHipAnkle Brachial IndexJoint InstabilityBones of Upper ExtremityQuadriceps MuscleMobility LimitationIliac VeinMagnetic Resonance ImagingMenisci, TibialMedial Collateral Ligament, KneeLower Extremity Deformities, CongenitalOsteoarthritisSeverity of Illness IndexSaphenous VeinAmputeesSoccerElectromyographyCartilage, ArticularFootRisk FactorsPostoperative ComplicationsVascular System InjuriesSoft Tissue NeoplasmsVenous InsufficiencyContractureAngiographyLymphedemaMuscle WeaknessThrombophlebitisPhlebographySoft Tissue InjuriesSarcoma