Xov Xwm - Ob lub luag haujlwm tseem ceeb ntawm 'thaiv cov ntsia hlau

Ob lub luag haujlwm tseem ceeb ntawm 'blocking ntsia hlau

Thaiv cov ntsia hlau yog dav siv hauv kev kho mob, tshwj xeeb tshaj yog nyob rau hauv fixation ntawm ntev intramedullary rau tes.

Hauv cov ntsiab lus, kev ua haujlwm ntawm kev thaiv cov ntsia hlau tuaj yeem ua tiav raws li ob npaug: thawj zaug, txo qis, thiab thib ob, txhawm rau txhim kho kev ruaj ntseg sab hauv.

Nyob rau hauv cov nqe lus ntawm kev txo qis, qhov 'blocking' kev txiav txim ntawm lub blocking ntsia hlau yog ua hauj lwm los hloov cov kev taw qhia ntawm lub sab hauv fixation, ua tau raws li qhov xav tau kev txo qis thiab kho kom haum.Hauv cov ntsiab lus no, cov ntsia hlau thaiv yuav tsum tau muab tso rau ntawm qhov chaw 'tsis mus', txhais tau tias qhov chaw uas tsis xav tau kev kho sab hauv.Noj tibia thiab femur ua piv txwv:

Rau tibia: Tom qab ntxig cov ntawv qhia hlau, nws yog positioned tiv thaiv lub posterior cortex ntawm tibial ncej, deviating los ntawm midline ntawm medullary kwj dej.Nyob rau hauv qhov kev taw qhia 'tsis xav tau', tshwj xeeb tshaj yog tom qab ntawm lub metaphysis, ib qho kev thaiv cov ntsia hlau tau muab tso rau coj cov xaim mus rau pem hauv ntej ntawm medullary kwj dej.

Femur: Nyob rau hauv cov duab hauv qab no, tus ntsia thawv retrograde femoral yog qhia, nrog cov pob txha xaus qhia txog sab nraud.Tus ntsia thawv intramedullary yog positioned rau sab hauv ntawm lub medullary kwj dej.Yog li ntawd, cov ntsia hlau thaiv yog muab tso rau sab hauv kom ua tiav qhov kev hloov ntawm txoj hauj lwm ntawm tus ntsia thawv intramedullary.

Hais txog kev txhim kho kev ruaj ntseg, thaiv cov ntsia hlau tau pib siv los txhawb kev ruaj ntseg ntawm cov pob txha luv luv ntawm qhov kawg ntawm tibial ncej tawg.Los ntawm kev thaiv kev txav ntawm cov ntsia hlau intramedullary los ntawm kev thaiv cov ntsia hlau ntawm sab hauv thiab sab nrauv, raws li tau piav qhia hauv qhov piv txwv ntawm femoral intercondylar thiab supracondylar tawg hauv qab no, qhov ruaj khov ntawm cov pob txha tawg tuaj yeem ua kom muaj zog.Qhov no pab tiv thaiv lub viav vias ntawm cov ntsia hlau intramedullary thiab cov pob txha nyob deb.

Ib yam li ntawd, hauv kev kho cov pob txha tibial nrog cov ntsia hlau intramedullary, kev siv thaiv cov ntsia hlau kuj tuaj yeem ua haujlwm los txhim kho qhov ruaj khov ntawm cov pob txha tawg.