髌骨内外侧软组织对髌骨稳定性的作用

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1、英文摘要ofthemedialborderofthepatella，then，aweightof2Kgwashangingontheothersideoftheanchor．Theweightof2Kgimposedhorizontalmedialvectoronthepatellathroughthepulleyonthehomemadekneejointretentionmechanism．TheCTscanwasperformedonthepatellofemoraljointwiththelateralsofttissuewasdissected，and

2、thescanimagesweresaved(GroupL)．Finally,thescannedimagesofthese3groupswasmeasured，includingcongruenceangle(CA)andpatellartiltangle(PTA)andLateralpatellardisplacement(LPD)．TheSPSS16．0statisticalsoftwarewasseparatelyusedforfindingthestatisticalsignificanceofCA，PTA，LPDbetweenGroupNandGro

3、upM，GroupNandGroupL，GroupMandGroupL．Results：TheCTscanwasperformedonthepatellofemoraljointwiththeintegrityofmedialandlateralsofttissue，themeasurementsofCAO)，PTA(o)，LPD(mm)were44-1．3，34-1．0，4．54-1．2respectively,allofthemunderthenormalrange．TheCTscanwasperformedonthepatellofemoraljointw

4、iththemedialsofttissuewasdissectedwithaweightof2Kgimposedhorizontallateralvectoronthepatellathroughthepulleyonthehomemadekneejointretentionmechanism，themeasurementsofCAO)，PTA(。)，LPD(mm)were394-2．8，164-1．4，234-1．6respectively．ThemeasurementsofCA，PTA，LPDwereincreasedsignificantlycompar

5、edwithGroupN(P

6、CAO)，PTA0)，LPD(ram)were50+2．7，27+2．6，14．5+1．9．ThemeasurementsofCA，PTA，LPDwereincreasedsignificantlycomparedwithGroupN(火O．05)．Then，themeasurementsofCA，PTA，LPDwerecomparedbetweenGroupMandGroupL，therewerestatisticallysignificantdifferencesbetween2groups(尸

7、yandnormaltrajectoryofthepatellardependsonthebalanceofthemedialandlateralsofttissueofpatellar．2．Themainroleofpatellarmedialsofttissuewastorestrictthelateraldisplacement4英文摘要ofthepatella，SOastoeffectivelypreventpatellardislocation．3．Themainroleofpatellarlateralsofttissuewastopreventex

8、cessiverotat