FemurKnee JointKneeOsteoarthritis, KneeArthroplasty, Replacement, KneeKnee ProsthesisKnee InjuriesFemoral FracturesTibiaFemur NeckFemur HeadRange of Motion, ArticularFemoral NeoplasmsBiomechanical PhenomenaWeight-BearingKnee DislocationPatellaAnterior Cruciate LigamentCartilage, ArticularMenisci, TibialFemoral Neck FracturesBone MalalignmentMedial Collateral Ligament, KneeArthralgiaJoint InstabilityDiaphysesBone DensityArthroscopyOsteoarthritisFracture Fixation, IntramedullaryProsthesis DesignPosterior Cruciate LigamentLigaments, ArticularGaitProsthesis FailureQuadriceps MusclePain MeasurementPainArthroplasty, Replacement, HipTreatment OutcomeBone NailsBone and BonesJoint DiseasesReoperationRecovery of FunctionJoint Deformities, AcquiredHipFracture HealingArthrometry, ArticularFemur Head NecrosisCadaverHip ProsthesisLeg Length InequalityMagnetic Resonance ImagingFracture Fixation, InternalFollow-Up StudiesEpiphysesBone CementsPatellofemoral JointHumerusMuscle StrengthHip FracturesOsteophyteBone PlatesOrthopedic ProceduresBone RemodelingPostoperative ComplicationsWalkingStress, MechanicalBone TransplantationAbsorptiometry, PhotonFractures, SpontaneousFracture FixationOsteoporosisContracturePeriprosthetic FracturesReconstructive Surgical ProceduresProsthesis-Related InfectionsRotationTorqueTime FactorsProspective StudiesRetrospective StudiesCementationBone LengtheningPatellar LigamentThighSeverity of Illness IndexSynovitisSurgery, Computer-AssistedHip JointMovementBone DevelopmentArthrographyMuscle, SkeletalTibial FracturesSynovial FluidReproducibility of ResultsHemarthrosisLeg Bones