Femoral Neck FracturesFracture Fixation, InternalHemiarthroplastyFracture HealingFemur NeckHip FracturesArthroplasty, Replacement, HipFractures, BoneFemur HeadFemoral FracturesBone ScrewsFractures, ComminutedHip ProsthesisFemur Head NecrosisFractures, SpontaneousFractures, UnunitedFracture FixationHip DislocationHip JointReoperationBone DensityOsteoporotic FracturesBone NailsArthroplastySpinal FracturesOsteoporosisBone MalalignmentCementationRadius FracturesFractures, MalunitedProsthesis FailureFracture Fixation, IntramedullaryFractures, StressPostoperative ComplicationsBone PlatesNeckIncidenceOsteoarthritis, HipFemurOsteonecrosisTreatment OutcomeBone CementsFollow-Up StudiesRetrospective StudiesHead and Neck NeoplasmsFibulaDislocationsOsteotomyLeg Length InequalityOsteomalaciaDelayed DiagnosisProsthesis DesignOrthopedic ProceduresAbsorptiometry, PhotonRecovery of FunctionTime FactorsRange of Motion, ArticularUlna FracturesTechnetium Tc 99m MedronateTime-to-TreatmentProspective StudiesLithuaniaOsteoporosis, PostmenopausalDurapatiteJoint ProsthesisRib FracturesSkull FracturesRisk FactorsAcetabulumLumbar VertebraeMandibular FracturesBone TransplantationBone WiresNeck PainMetacarpal BonesHipTooth FracturesBone Diseases, MetabolicFractures, CompressionBone Density Conservation AgentsMultiple TraumaIntra-Articular FracturesTalusJoint CapsuleAccidental Falls