Kenyelletso ea li-implants tsa hip le tlhahlobo ea biomarker
Ilona Świątkowska, ... Alister J. Hart, inLi-biomarkers tsa Mosebetsi oa Hip Implant, 2023
1.2.1.2 Lipolima tsa polasetiki
Boima bo phahameng ba molek'hulepolyethylene(UHMWPE) ke apolymer ea semicrystallinee nang le nalane e telele ea tšebeliso hosetsebi sa masapolisebelisoa, haholo-holo kaacetabularliner bakeng saTHR li-implant.Thepa e na le coefficient e tlase ea likhohlano, e lumellana le lintho tse phelang, 'me ha e theko e tlase ho e hlahisa.
Leha ho le joalo, ha e kopana le libaka tse thata haholoanyane, UHMWPE e ntša likaroloana tse boholo ba micrometer, tse ka lebisang hoho kokobela ha lesapoho pota-potakenyaperiprosthetic osteolysis,ho hlohlona ha aseptic(tahlehelo ea ho kenya li-implant ha ho se ts'oaetso), le ho hloleha ha mochini pele ho nako.Ho fokotsa ho ata ha litlamorao tsena tse mpe, ho entsoe boikitlaetso bo boholo ho eketsa sekhahla sa ho hokahana ka har'a UHMWPE.
Li-liner tsa UHMWPE (HXLPE) tsa moloko oa pele, tse hlahisitsoeng ka mokhoa oa bongaka lilemong tsa bo-1990, li ile tsa khabisoa ka mahlaseli a gamma, 'me tsa sebelisoa ka mocheso (a anneal kapa ho qhibilihisoa) ho ntlafatsa ho hanyetsa ha tsona.li-radicals tsa mahalae entsoeng ka nako ya kgadiso.Ha ho ts'ebetso e 'ngoe e ileng ea fana ka litholoana tse phethahetseng: annealing e ile ea hloleha ho felisa li-radicals tsohle tsa mahala, athe ho qhibiliha ho ile ha fella ka thepa e nang le li-radicals tsa mahala tse sa bonahaleng empa e fokotsehile.bokhabanele ho ba le monyetla oa ho ba le mokhathala o eketsehileng (Kurtz et al., 2011).
Ho leka ho rarolla mathata ana, moloko o latelang oa li-liner tsa HXLPE o ne o ikemiselitse ho finyella khanyetso ea oxidative ha o ntse o boloka ho hanyetsa ho hoholo ha thepa ea moloko oa pele le mochine.matlaea polyethylene e tloaelehileng;mekhoa e 'meli e sebelisitsoeng e ne e le tatellano ea mahlaseli le annealing, levithamine Edoping (vithamine E e sebetsa e le sekhomaretsi sa mahala) (D'Antonio et al., 2012; Oral and Muratoglu, 2011).
Leha ho na le matšoenyeho a pele, HXLPE ea moloko oa pele e bonts'a liphetho tse ntle tsa radiographic le bophelo bo bolelele, esita le ho bacha le ba mafolofolo.bakuli(Lim et al., 2019).HXLPE ea moloko oa bobeli e fane ka liphetho tse ts'episang tsa nako e khuts'oane ho isa bohareng, empa ho tla hlokahala hore ho lateloe nako e telele ho netefatsa hore na meralo ena e na le molemo oa bongaka ho feta li-liner tsa moloko oa pele (Langlois le Hamadouche, 2020).
Nako ea poso: Jun-26-2023
