Free RadicalsPolyethylenePolyethylenesPolyethylene GlycolsFree Radical ScavengersHydroxyl RadicalElectron Spin Resonance SpectroscopyAntioxidantsPicratesSuperoxide DismutaseOxidation-ReductionHydroxidesLipid PeroxidationNitrogen OxidesProsthesis FailureOxidative StressHydrogen PeroxideReactive Oxygen SpeciesCatharticsHip ProsthesisSuperoxidesSpin LabelsPolyethylene TerephthalatesXanthine OxidaseCatalaseOxygenCyclic N-OxidesAscorbic AcidSpin TrappingLipid PeroxidesProsthesis DesignOsteolysisMalondialdehydePlant ExtractsBiphenyl CompoundsChromium AlloysGlycolsMaterials TestingAntipyrineKineticsVitamin ETime FactorsProstatectomyGlutathioneDeferoxamineBiocompatible MaterialsDrug CarriersSurface PropertiesIronEquipment Failure AnalysisAcetabulumTioproninAluminum OxideArthroplasty, Replacement, HipOxidantsPolymersRats, WistarThiobarbituric Acid Reactive SubstancesWaterMolecular StructureAmidinesXanthineCrystallizationNitric OxidePhenolsBisacodylRats, Sprague-DawleySulfonic AcidsPeroxidesKnee ProsthesisLiposomesModels, ChemicalChromatography, High Pressure LiquidGlutathione PeroxidaseChemical PrecipitationDose-Response Relationship, DrugTanninsRibonucleotide ReductasesParticle SizeCell SurvivalPulse RadiolysisAllopurinolRabbitsHydrogen-Ion ConcentrationCells, CulturedFemur HeadFerric CompoundsCoated Materials, BiocompatibleZirconiumOrbital ImplantsLuminescent MeasurementsNanoparticlesReoperationSulfhydryl CompoundsSolubilityIndicators and ReagentsCopperHorseradish PeroxidasePeroxidasesHip Joint