OsteoporosisOsteoporosis, PostmenopausalBone DensityBone Density Conservation AgentsFractures, BoneOsteoporotic FracturesDiphosphonatesAbsorptiometry, PhotonFractures, SpontaneousAlendronateBone and BonesBone Diseases, MetabolicTeriparatideSpinal FracturesEtidronic AcidBone RemodelingBone ResorptionFemur NeckLumbar VertebraeHip FracturesRaloxifeneRisk FactorsOsteoclastsFemurGlucocorticoidsCalcaneusCalcium, DietaryOsteoblastsVitamin DSelective Estrogen Receptor ModulatorsSpineOsteogenesisRANK LigandCalcitoninOsteocalcinHipParathyroid HormoneOvariectomyEstrogen Replacement TherapyDisease Models, AnimalBone DiseasesOsteoprotegerinAlkaline PhosphataseDensitometryIliumBiological MarkersAccidental FallsCollagen Type IPostmenopauseRadiusCalciumJaw DiseasesSpinal InjuriesOsteomalaciaEstrogensMetacarpusForearm InjuriesMenopauseTibiaAge FactorsPrevalenceMineralsBone DevelopmentFemoral Neck FracturesAgingEndocrine System DiseasesTreatment OutcomeFractures, CompressionMass ScreeningCalcification, PhysiologicOsteonecrosisHormone Replacement TherapyCathepsin KRisk AssessmentMenTime FactorsAnabolic AgentsCase-Control StudiesCross-Sectional StudiesThoracic VertebraeThiophenesBack PainMicroradiographyHip JointVitamin D DeficiencyLow Density Lipoprotein Receptor-Related Protein-5OsteocytesX-Ray MicrotomographyBone Demineralization, PathologicFemoral FracturesHypogonadismDietary SupplementsAdrenal Cortex HormonesSex FactorsRetrospective StudiesSignal TransductionReceptor Activator of Nuclear Factor-kappa BProspective StudiesQuestionnairesKyphosis