Mbale yotsekera ndi chipangizo chomangira ming'alu yokhala ndi dzenje lokhala ndi ulusi. Pamene screw yokhala ndi mutu wotsekera ilowetsedwa mu dzenje, mbaleyo imakhala chipangizo chomangira ngodya (screw). Ma plate achitsulo otsekera (okhazikika pa ngodya) amatha kukhala ndi mabowo a screw otsekera komanso osatsekera kuti ma screw osiyanasiyana atsekeredwemo (omwe amatchedwanso ma combined steel plates).
1. Mbiri ndi chitukuko
Ma lock plates adayambitsidwa koyamba zaka pafupifupi 20 zapitazo kuti agwiritsidwe ntchito pa opaleshoni ya msana ndi maxillofacial. Kumapeto kwa zaka za m'ma 1980 ndi 1990, maphunziro oyesera pa mitundu yosiyanasiyana ya zipangizo zomangira mkati adayambitsa ma lock plates pochiza kusweka kwa mafupa. Njira yomangira yotetezeka iyi idapangidwa poyamba kuti ipewe kusweka kwakukulu kwa minofu yofewa.
Zinthu zingapo zalimbikitsa kugwiritsa ntchito mbale iyi kuchipatala, kuphatikizapo:
Kuchuluka kwa mafupa osweka kukupitirirabe pamene chiwerengero cha anthu opulumuka chikukwera mwa odwala omwe ali ndi vuto la mphamvu zambiri komanso chiwerengero cha okalamba omwe ali ndi vuto la mafupa chikuwonjezeka ku Western Europe ndi North America.
Madokotala ndi odwala sakukhutira ndi zotsatira za chithandizo cha kusweka kwa mafupa ena a periarticular.
Zinthu zina zomwe sizikukhudza thanzi la anthu zitha kukhala izi: kukwezedwa kwa ukadaulo watsopano ndi misika yatsopano m'makampani; kutchuka pang'onopang'ono kwa opaleshoni yosavulaza kwambiri, ndi zina zotero.
2. Makhalidwe ndi mfundo zokhazikika
Kusiyana kwakukulu kwa biomechanical pakati pa ma lock plates ndi ma plates achikhalidwe ndikuti ma plates amadalira kukangana pakati pa fupa ndi plate kuti amalize kukanikiza fupa ndi plate.
Zolakwika za biomechanical za mbale zachitsulo zachikhalidwe: zimafinya periosteum ndikukhudza magazi kupita kumapeto kwa fracture. Chifukwa chake, osteosynthesis yachikhalidwe yokhazikika (monga interfragmentary compression ndi lag screws) ili ndi kuchuluka kwa zovuta, kuphatikizapo matenda, plate fracture, delayed union, ndi nonunion.
Pamene kuzungulira kwa katundu wa axial kukuwonjezeka, zomangira zimayamba kumasuka ndikupangitsa kuti kukangana kuchepe, zomwe zimapangitsa kuti mbaleyo imasulidwe. Ngati mbaleyo imasuka isanapunthike, mbali yosweka idzakhala yosakhazikika ndipo pamapeto pake mbaleyo idzasweka. Zikakhala zovuta kupeza ndikusunga screw fixation yolimba (monga metaphysis ndi osteoporotic bone ends), zimakhala zovuta kwambiri kusunga fracture end yokhazikika.
Mfundo yokhazikika:
Ma plate otsekeka sadalira kukangana pakati pa fupa ndi mbale. Kukhazikika kumasungidwa ndi kulumikizana kokhazikika pakati pa screw ndi mbale yachitsulo. Chifukwa mtundu uwu wa chogwirira chamkati chotsekeka uli ndi umphumphu wokhazikika, mphamvu yotulutsa ya screw ya mutu wotsekeka imakhala yayikulu kwambiri kuposa ya zomangira wamba. Pokhapokha ngati zomangira zonse zozungulira zitachotsedwa kapena kusweka, zimakhala zovuta kuti screw ichotsedwe kapena kusweka yokha.
3. Zizindikiro
Mafupa ambiri osweka omwe amachiritsidwa ndi opaleshoni safuna kutsekeka kwa mbale. Malinga ngati mfundo za opaleshoni ya mafupa zikutsatiridwa, mafupa ambiri amatha kuchiritsidwa ndi mbale zachikhalidwe kapena misomali yamkati mwa medullary.
Komabe, pali mitundu ina yapadera ya kusweka kwa mafupa komwe kumatha kutayika, kusweka kwa mbale kapena sikulufu, komanso kusalumikizana kwa mafupa pambuyo pake. Mitundu iyi, yomwe nthawi zambiri imatchedwa kusweka kwa "kusathetsedwa" kapena "vuto", imaphatikizapo kusweka kwa mafupa komwe kumachitika mkati mwa articular, kusweka kwa mafupa afupi a periarticular, ndi kusweka kwa mafupa a osteoporotic. Kusweka koteroko ndi zizindikiro za ma plates otsekeka.
4. Kugwiritsa Ntchito
Opanga ambiri akuperekanso mapepala okhala ndi mabowo otsekeka. Mwachitsanzo, mapepala okhala ndi mawonekedwe a anatomic a femurs yoyandikana ndi yakutali, tibias yoyandikana ndi yakutali, humerus yoyandikana ndi yakutali, ndi calcaneus. Kapangidwe ka mbale yachitsulo kamachepetsa kwambiri kukhudzana pakati pa mbale yachitsulo ndi fupa nthawi zambiri, motero kusunga magazi a periosteal ndi kutuluka kwa magazi kumapeto kwa fracture.
LCP (mbale yotsekera yotsekera)
Chipangizo chatsopano cholumikizira mkati chimaphatikiza ukadaulo wosiyana kwambiri wolumikizira mkati mwa chipangizocho kukhala cholumikizira chimodzi.
LCP ingagwiritsidwe ntchito ngati mbale yopondereza, bulaketi yamkati yotseka, kapena kuphatikiza ziwirizi
Zovuta pang'ono:
Ma plate otsekera ambiri ali ndi zogwirira zakunja za stent, zogwirira, ndi mapangidwe a nsonga zosalala zomwe zimathandiza madokotala kuyika mbaleyo pansi pa minofu kapena pansi pa khungu kuti isalowe kwambiri.
Ngati mukufuna kudziwa zambiri za malonda athu, chonde lemberani:
Yoyo
WhatsApp/Tel: +86 15682071283
Nthawi yotumizira: Sep-25-2023
