AmputeesLower ExtremityArtificial LimbsAmputation StumpsPhantom LimbAmputationLegAmputation, TraumaticUpper ExtremityLeg InjuriesExtremitiesPeripheral Vascular DiseasesGaitBones of Lower ExtremityProsthesis FittingArmWalkingLeg BonesBiomechanical PhenomenaArm InjuriesIschemiaTibiaVascular Surgical ProceduresKneeFootLimb SalvageProsthesis DesignPeripheral Arterial DiseaseDisarticulationVeinsTreatment OutcomeAnkleElectromyographyCrutchesFemoral VeinMan-Machine SystemsHandMovementVascular PatencyIntermittent ClaudicationKnee JointPopliteal VeinTibial ArteriesLeg UlcerUpper Extremity Deformities, CongenitalArterial Occlusive DiseasesFoot BonesRetrospective StudiesHip JointPostureFoot InjuriesFemoral ArteryCallositiesMuscle, SkeletalVenous ThrombosisGangreneDiabetic FootPopliteal ArteryRange of Motion, ArticularMuscle StrengthAtherectomyUltrasonography, Doppler, DuplexAthletic InjuriesRoboticsTime FactorsToesAnkle Brachial IndexBones of Upper ExtremityAnkle JointTouch