基于数字技术股骨后髁角的三维测量-研究

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1、硕士学位论文TheMeasurementoftheFemurPosteriorCondylarAnglewithDigitalThree-dimensionalReconstructionTechniqueName：RenPengSupervisor：YuBinABSTRACTBackgroundRecently,moreandmorepeopleacceptthetotalkneearthroplasty(TKA)totreatOsteoarthritisinChina．However,theincidencerateofpostoperativepatel

2、lofemoralcomplicationsishigherinourcountrythandevelopedcountry．ThereasonisthekneeanatomicalcharacteristicsofChineseisnotdeeplydiscussedandanalysised．Femoralcomponentmalrotationisamajorreasonofpatellofemoralcomplications．Thedefinitionofsurgicalepicondylaraxisandthemeasure‘OfPosterior

3、CondylarAngle(PCA)areusedforestablishingfemoralrotationalalignmentduringtotalkneearthroplasty．Theyhavealreadyturnedtobethefocusandmostpopularreseachtopicsinanatomyandthetotalkneearthroplasty．Patellofemoralcomplicationssuchassubluxation，dislocation．patellarclunk，eccentricwearandanter

4、iorkneepainresultedfrompoorpatellartrackinghavebeenreported．Patellofemoralcomplicationsarethemostcommonpostoperativeproblemassociatedwiththecurrentdesignoftotalkneeprosthesesandoneofthemajorreasonsforrevisionsurgery．PrecisionmeasurementofPosteriorCondylarAngle(PCA)Cansupplyreasonabl

5、ereferencedparametersoftherotationalalignmentforthetotalkneearthroplasty．ItmayImprovedurabilityofthekneeprosthesis．ABSTRAcrThemeasurementofPCAincludestraditionalanatomymeasurementonfemursofadultcadaversandtheimagemeasurement．Traditionalanatomyresearchfocusonsectioning，observmionandm

6、easurement．ThedisadvantageoftraditionalanatomyhaveartificalinfluencefactorsthatCallleadtoerrors．Furthermore，cadaverscadaverspecimensareexpensive．Asthedevelopmentofimagingtechnique，TheimageofMRandCTprovidesomeinformationofthreedimensions，butwegetthebidimensionalimageinfact．Bidimensio

7、nalimageCOVerupinformationsofhumanbodybecauseitisthree-dimensionalstructure．ThemeasureofPCAisnotaccurateonbidimensionalimagesofMRandCTbecauseofitsthree—dimensionalangle．Asthedevelopmentofdigitizingthree—dimensionalreconstructiontechniqueofcomputer,itispossibletochangethebidimensiona

8、lmedicalimageintoth