Lub pob qij txha hloov prosthesis kav ntev npaum li cas?

Kev phais pob qij txha caj dab yog ib txoj kev phais zoo dua rau kev kho mob ntawm lub taub hau femoral necrosis, osteoarthritis ntawm lub pob qij txha caj dab, thiab pob txha tawg ntawmpob txha nqaj qaumcaj dab thaum laus lawm. Kev phais pob qij txha tam sim no yog ib qho txheej txheem laus dua uas maj mam nrov zuj zus thiab tuaj yeem ua tiav txawm tias nyob hauv qee lub tsev kho mob nyob deb nroog. Nrog rau kev nce ntxiv ntawm cov neeg mob hloov pob qij txha, cov neeg mob feem ntau txhawj xeeb txog lub sijhawm ntev npaum li cas lub prosthesis yuav kav ntev tom qab phais hloov pob qij txha thiab seb nws puas yuav kav ntev mus ib txhis. Qhov tseeb, lub sijhawm ntev npaum li cas lub pob qij txha hloov pauv tuaj yeem siv tom qab phais mob nyob ntawm peb yam tseem ceeb: 1, kev xaiv cov ntaub ntawv: tam sim no muaj peb yam khoom tseem ceeb rau cov pob qij txha dag: ① lub taub hau ceramic + khob ceramic: tus nqi yuav siab dua. Qhov zoo tshaj plaws ntawm kev sib xyaw ua ke no yog tias nws tiv taus kev hnav ntau dua. Hauv kev sib txhuam ceramic thiab ceramic, tib lub nra hnyav, kev hnav thiab tsim kua muag piv rau qhov sib txuas hlau yog me dua, thiab cov khoom me me uas tseem tshuav hauv qhov sib koom ua ke vim kev hnav thiab tsim kua muag kuj me heev, feem ntau yuav tsis muaj kev tsis lees paub lub cev rau cov khoom hnav. Txawm li cas los xij, thaum muaj kev ua ub no hnyav lossis kev sawv tsis zoo, muaj kev pheej hmoo me me ntawm kev tawg ceramic. Kuj tseem muaj ob peb tus neeg mob uas muaj lub suab "creaking" los ntawm kev sib txhuam ceramic thaum ua ub no.

② Lub taub hau hlau + khob polyethylene: keeb kwm siv ntev dua thiab yog kev sib xyaw ua ke ntau dua. Hlau rau ultra-high polymer polyethylene, feem ntau tsis tshwm sim hauv kev ua haujlwm muaj qhov rattle tsis zoo, thiab yuav tsis tawg thiab lwm yam. Txawm li cas los xij, piv nrog ceramic rau ceramic sib txhuam interface, nws hnav ntau dua me ntsis hauv tib lub nra rau tib lub sijhawm. Thiab hauv cov neeg mob me me, nws yuav teb rau cov khib nyiab hnav, ua rau o nyob ib puag ncig cov khib nyiab hnav tshwm sim hauv kev teb, thiab maj mam mob nyob ib puag ncig prosthesis, prosthesis loosening, thiab lwm yam. ③ Lub taub hau hlau + hlau bushing: hlau rau hlau sib txhuam interface (cobalt-chromium alloy, qee zaum stainless hlau) Qhov kev sib txhuam interface no tau siv rau xyoo 1960. Txawm li cas los xij, qhov interface no tuaj yeem tsim ntau cov hlau hnav, cov khoom no tuaj yeem phagocytosed los ntawm macrophages, tsim cov tshuaj tiv thaiv txawv teb chaws, hnav tsim cov hlau ions kuj tseem tuaj yeem nkag mus rau hauv cov ntshav, ua rau muaj kev tsis haum tshuaj hauv lub cev. Nyob rau hauv xyoo tas los no, hom interface pob qij txha no tau raug tso tseg. ④ Lub taub hau ceramic rau polyethylene: Lub taub hau ceramic yog tawv dua hlau thiab yog cov khoom siv cog hniav uas tiv taus khawb tshaj plaws. Cov ceramic uas siv tam sim no hauv kev phais hloov pob qij txha muaj qhov tawv, tiv taus khawb, thiab du heev uas tuaj yeem txo qhov hnav ntawm cov polyethylene sib txhuam interfaces. Qhov hnav ntawm cov khoom cog hniav no tsawg dua li hlau rau polyethylene, uas yog, ceramic rau polyethylene yog qhov ua tau zoo dua li hlau rau polyethylene! Yog li ntawd, qhov zoo tshaj plaws ntawm cov pob qij txha dag, tsuas yog hais txog cov khoom siv, yog qhov sib txuas ceramic-rau-ceramic. Qhov laj thawj rau lub neej ntev ntawm cov pob qij txha no yog tias qhov hnav raug txo los ntawm kaum npaug mus rau ntau pua npaug piv rau cov pob qij txha yav dhau los, ua rau lub sijhawm siv pob qij txha ntev dua, thiab cov khoom hnav yog cov zaub mov sib xws rau tib neeg uas tsis ua rau osteolysis thiab osteoporosis nyob ib puag ncig prosthesis, uas yog qhov tsim nyog dua rau cov neeg mob hluas uas muaj kev ua ub no siab. 2. Kev tso qhov tseeb ntawm lub duav prosthesis: los ntawm kev tso qhov tseeb ntawm lub prosthesis thaum lub sijhawm phais, acetabulum thiab femoral stalk. Kev kho kom ruaj khov ntawm lub prosthesis thiab lub kaum sab xis tsim nyog ua rau lub prosthesis tsis txhob sib sau ua ke thiab dislocated, yog li tsis ua rau lub prosthesis xoob.

Kev tiv thaiv lawv tus kheej lub pob qij txha: txo qhov hnyav, kev ua ub ua no hnyav (xws li nce toj thiab kev tuav qhov hnyav ntev, thiab lwm yam) kom txo qhov hnav thiab rhuav ntawm cov prosthesis. Tsis tas li ntawd, tiv thaiv kev raug mob, vim tias kev raug mob tuaj yeem ua rau pob txha tawg nyob ib puag ncig cov prosthesis ntawm lub duav, uas tuaj yeem ua rau cov prosthesis xoob.

Yog li ntawd, cov khoom siv prostheses ntawm lub duav ua los ntawm cov khoom siv uas tsis tshua muaj abrasive, qhov chaw tseeb ntawmpob qij txhathiab kev tiv thaiv tsim nyog ntawm lub pob qij txha tuaj yeem ua rau lub prosthesis kav ntev dua, txawm tias mus tas li.