Intangiriro yo gutera ikibuno no gupima biomarker
Ilona Świątkowska, ... Alister J. Hart, muriIbinyabuzima byerekana imikorere ya Hip Implant, 2023
1.2.1.2
Ultra-hejuru-ya-molekulari-uburemerepolyethylene(UHMWPE) ni asemicrystalline polymerhamwe namateka maremare yo gukoresha muriamagufwaPorogaramu, cyane cyane muriacetabularkubuntuTHR gushiramo.Ibikoresho bifite coefficient nkeya yo guterana, ni biocompatable, kandi bihendutse kubyara.
Ariko, mugihe uhuye nubuso bukomeye, UHMWPE irekura micrometre ingana nini, ishobora kuganishaamagufwahafi yagushiramo(periprosthetic osteolysis),kurekura(gutakaza ibyakosowe mugihe habaye infection), no kunanirwa hakiri kare.Kugirango ugabanye ubwinshi bwizi ngaruka mbi, hashyizweho ingufu nyinshi kugirango wongere urwego rwo guhuza muri UHMWPE.
Igisekuru cya mbere cyahujwe cyane na UHMWPE (HXLPE), cyatangijwe mumavuriro mu myaka ya za 90, gama yarashizwemo hanyuma itunganywa nubushyuhe (yometse cyangwa yashizwemo) kugirango irusheho kunaniraradicals yubuntubyakozwe mugihe cyo kurasa.Ntabwo inzira yatangaga ibisubizo byiza: annealing yananiwe gukuraho radicals zose zubuntu, mugihe gusubiramo byaviriyemo ibikoresho bifite radicals yubusa itamenyekana ariko bikagabanukakristuno kongera kwandura umunaniro (Kurtz et al., 2011).
Kugerageza gukemura ibyo bitagenda neza, ibisekuru bizaza bya HXLPE bigamije kugera ku kurwanya okiside mugihe hagumyeho imyambarire myinshi yibikoresho byo mu gisekuru cya mbere hamwe nubukanishiimbaragaya polyethylene isanzwe;uburyo bubiri bwakoreshejwe ni irrasiyo ikurikiranye hamwe na annealing, navitamine E.doping (vitamine E ikora nka scavenger yubusa) (D'Antonio et al., 2012; Umunwa na Muratoglu, 2011).
Nubwo impungenge zambere, igisekuru cya mbere HXLPE yerekana ibisubizo byiza bya radiografiya no kuramba, ndetse no mubuto kandi bakoraabarwayi(Lim et al., 2019).Igisekuru cya kabiri HXLPE yatanze ibisubizo bitanga umusaruro mugihe gito cyangwa giciriritse, ariko bizakurikiranwa igihe kirekire kugirango hamenyekane niba ibyo bishushanyo bifite inyungu zivuriro kurenza ibisekuruza byambere (Langlois na Hamadouche, 2020).
Igihe cyo kohereza: Jun-26-2023
