Knee JointOsteoarthritis, KneeKneeArthroplasty, Replacement, KneeKnee ProsthesisKnee InjuriesRange of Motion, ArticularBiomechanical PhenomenaContractureWeight-BearingMovementTibiaAnterior Cruciate LigamentPatellaJoint InstabilityPosterior Cruciate LigamentArthrometry, ArticularAmyotrophic Lateral SclerosisGaitTorqueElectromyographyKnee DislocationPostureElbow JointRotationMedial Collateral Ligament, KneeMuscle, SkeletalArthralgiaArthroscopyCadaverQuadriceps MuscleCartilage, ArticularAnkle JointMenisci, TibialPain MeasurementRecovery of FunctionProsthesis DesignElbowLateral Line SystemMuscle StrengthTreatment OutcomeJoint DiseasesIsometric ContractionJoint Deformities, AcquiredHipPainOsteoarthritisMagnetic Resonance ImagingMuscle ContractionWalkingProprioceptionLigaments, ArticularTendonsBone MalalignmentHip JointOrthotic DevicesCollateral LigamentsFemurPatellar LigamentWrist JointLumbar VertebraeLocomotionFollow-Up StudiesCervical VertebraeLegTime FactorsOrthopedic ProceduresHypothalamic Area, LateralNeck MusclesLateral VentriclesMuscle Strength DynamometerFootProsthesis FailureBracesStress, MechanicalSpineThighTorsoReconstructive Surgical ProceduresReproducibility of ResultsFluoroscopyPhysical Therapy ModalitiesRuptureAthletic InjuriesFingersReoperationAnalysis of VarianceSupinationWristProspective StudiesReflexAnkleOrthopedic EquipmentShoulder JointGait Disorders, NeurologicPostoperative ComplicationsRetrospective StudiesThumbSplintsMuscle Weakness