Xov xwm - ob lub luag haujlwm tseem ceeb ntawm 'thaiv cov ntsia hlau

Ob lub feem pua ntawm 'thaiv cov ntsia hlau

Thaiv cov screws yog dav siv hauv kev tshawb fawb, tshwj xeeb tshaj yog nyob rau hauv kev kho cov ntsia hlau ntev intramedulled.

Hauv ntsiab lus, cov haujlwm ntawm kev thaiv cov screws tuaj yeem suav tau raws li ob-fold: ua ntej, rau kev txo qis kev ruaj ntseg ruaj khov.

Nyob rau hauv cov nqe lus ntawm kev txo, 'thaiv' kev ua ntawm cov ntsia hlau thaiv tau ua haujlwm ntawm kev kho sab hauv, ua tiav cov kev xav tau thiab kho cov txheej txheem. Hauv cov ntsiab lus no, cov thaiv cov ntsia hlau yuav tsum tau muab tso rau thaum 'tsis yog mus' qhov chaw, lub ntsiab lus qhov chaw kho sab hauv tsis xav tau. Noj cov tibia thiab femur ua piv txwv:

Rau tibia: Tom qab ntxig cov lus qhia hlau, nws tau muab tso tawm tsam tus ncej tom qab ntawm cov ncej togior, deviating los ntawm midline ntawm canal. Nyob rau hauv 'undesired' kev taw qhia, tshwj xeeb tshaj plaws cov duab tom qab ntawm kev metaphysis, kev thaiv cov ntsia hlau yog ntxig los coj cov hlau txuas mus qhia rau cov canally. "

Femur: Hauv kev ua piv txwv hauv qab no, ib qho retrograde femoral ntsia hlau yog qhia, nrog kev txha lov, nrog qhov xaus xaus ua kom pom kev sab nraud. Cov ntsia hlau intramedullary tau muab tso rau sab hauv ntawm lub kwj ha ntawm tus canally. Yog li ntawd, qhov thaiv cov ntsia hlau tau tso rau sab hauv kom ua tiav qhov kev hloov pauv hauv txoj haujlwm ntawm cov ntsia hlau ntsia hlau intramedullary.

Nyob rau hauv cov nqe lus ntawm kev ua kom muaj kev ruaj khov, thaiv cov screws tau siv los txhawb qhov kev ruaj ntseg ntawm kev sib tw ntawm tib lub siab ncos. Los ntawm kev sib zog ntawm kev txav ntawm cov ntsia hlau los ntawm cov ntsia hlau hauv qab no, qhov ruaj ntseg hauv qab no, qhov ruaj khov ntawm qhov kawg tuaj yeem siv zog. Qhov no pab tiv thaiv cov viav vias ntawm cov ntsia hlau ntsia hlau thiab cov pob txha nyob deb.

Ib yam li ntawd, nyob rau hauv kev txhim kho ntawm tibial pob txha lov nrog intramed ntsis ntsia hlau, kev thaiv cov screws kuj tseem ua haujlwm los txhim kho qhov ruaj khov ntawm qhov kawg ntawm cov pob txha to.