Designation:F2033−12StandardSpecificationforTotalHipJointProsthesisandHipEndoprosthesisBearingSurfacesMadeofMetallic,Ceramic,andPolymericMaterials1ThisstandardisissuedunderthefixeddesignationF2033;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisspecificationcoverstherequirementsforthemat-ingbearingsurfacesoftotalhipprosthesesandhipendopros-theses.Morespecifically,thisspecificationcovershipjointreplacementoftheball-and-socketconfiguration.1.2Thisspecificationcoversthesphericity,surfacefinishrequirements,anddimensionaltolerancesforthesphericalarticulatingmetallicorceramicfemoralheadsoftotalhipjointprostheses.1.3Thisspecificationcoversthesphericity,surfacefinishrequirements,anddimensionaltolerancesforthesphericalconcavematingsurfaceofmetallicandceramicacetabularcomponents,includingtheinnerpolymericbearingsurfaceofbipolarheads,andthesurfacefinishrequirementsanddimen-sionaltolerancesforthesphericalconcavematingsurfaceofpolymericacetabularcomponents.1.4Thisspecificationcoversthesphericityandsurfacefinishrequirementsforthesphericalmetallicorceramicfemoralheadsofhipendoprostheses,andtheouterbearingsurfaceofbipolarheads.1.5Thisspecificationisintendedforstandardpracticeregardingthedesignoftotalhipjointbearingsurfaces.Additionally,thetolerancesimposedonthepolymericportionofthebearingsurfaceareintentionallylargeduetotemperature-inducedsizechangesandothermanufacturingconcerns.Somemanufacturingmethodsordesignsmayinten-tionallyreducethediameterofthepolymericbearingtomorecloselymatewiththediameterofthehead.1.6ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.2.ReferencedDocuments2.1ISODocuments:2ISO4287/1SurfaceRoughness—TerminologyISO4291MethodsfortheAssessmentofDeparturefromRoundness,MeasurementofVariatio...
