資源描述:
《跟骨骨折手術(shù)方法.ppt》由會員上傳分享,免費在線閱讀,更多相關(guān)內(nèi)容在行業(yè)資料-天天文庫。
1、Preoplateraldemonstratingjointdepressiontypeoffracturewithdisplacementofatuberosityandextensionintothecalcanealcuboidjoint.The30degreesemi-coronalandaxialCATscansofthefracture.TALUSDISPLACEDPOSTERIORFACETINTACTPOSTERIORFACETSECONDARYFRACTURELINETUBEROSITYANTEROLATERALFR
2、AGMENTTHALAMIC(SUSTENTACULAR)FRAGMENTDISPLACEDPOSTERIORFACETThepatientispositionedcarefullyinthelateraldecubituspositionwithpadsundertheaxillaanddownsideperonealnerve.Thedownlegisplacedforwardagainstandparallelwiththeanterioredgeofthebed.Pillowsareplacedbetweenthelegsan
3、denoughsheetsbehindthedownlegsuchthattheoperativelegliesparallelwiththegroundandatthelevelofthepatient’ship.Thewrinkletest,asdescribedbySanders,involvesdorsiflexingthefootfromaplantar-fixedpositionandlookingfornormalskinturgor,asevidencedbywrinklingoftheskinalongthearea
4、ofthelateralpartofthefoot.ANTERIORACHILLESBORDERINCISIONPERONEALTENDONSFIFTHMETATARSALTheincisionisslightlycurvedandL-shaped,beginningjustanteriortotheAchilles,curvingattheleveloftheskincolorchange,runningparallelwiththesoleofthefootandthencurvingslightlyupanteriorlyati
5、tsdistalextent.FIBULAWiththetourniquetinflated,thecorneroftheincisionisbroughtdirectlydowntobone.ABDUCTORFASCIATowardthedistalextentoftheincisionthefasciaoftheabductorshouldbeidentifiedanddissectionshouldbeperformedsuperficiallytothissoasnottodevascularizethemusclelayer
6、.Inordertodissectdirectlyonthecalcaneusinasubperiostealmanner,significanttensionshouldbedevelopedbyholdingtheheelinvertedwiththethumbandpullingdirectlylaterallyawayfromthefootwithasharpretractorhelddeepintheflap.TENSIONThetensionasdevelopedallowsforeasydissectioninasubp
7、eriostealmanner,withaknifethatisheldessentiallyparallelwiththebone.Many#15bladeswillbenecessaryinordertodissectouttheentirecalcaneus.PERONEALTENDONSAftertheflapiscompletelyelevated,theperonealtendonsarevisibleatthedistalextentoftheflap.Caremustbetakennottodamagetheseten
8、donsasthedissectionprogressesdistally.LATERALPROCESSOFTALUSCloseupviewdemonstratingthatwithflapelevationthelat