Hip DislocationHip Dislocation, CongenitalDislocationsHip JointFemoracetabular ImpingementShoulder DislocationArthroplasty, Replacement, HipHip InjuriesOrthopedic ProceduresFemur HeadBone RetroversionKnee DislocationAcetabulumHip ProsthesisHipOsteotomyJoint CapsuleRange of Motion, ArticularLegg-Calve-Perthes DiseasePatellar DislocationOsteoarthritis, HipHip FracturesCerebral PalsyReoperationFemurRecovery of FunctionTreatment OutcomeRetrospective StudiesTractionProsthesis FailureFollow-Up StudiesLens SubluxationAcromioclavicular JointElbow JointJoint InstabilityManipulation, OrthopedicTime FactorsSplintsProsthesis DesignFemur Head NecrosisLigaments, ArticularFemoral Neck FracturesSternoclavicular JointAtlanto-Axial JointWrist InjuriesAtlanto-Occipital JointTarsal JointsPatellaPostoperative ComplicationsFractures, BoneShoulder JointBone Diseases, DevelopmentalUlnaSpinal InjuriesLakesFracture Fixation, InternalCasts, SurgicalBone Wires