I-prosthesis ethatha indawo yesinqe ihlala isikhathi esingakanani?

I-arthroplasty ye-hip iyindlela engcono yokuhlinzwa yokwelapha i-femoral head necrosis, i-osteoarthritis ye-hip joint, kanye nokuqhekeka kwe-hipisifemuintamo esekhulile. I-hip arthroplasty manje inqubo evuthiwe ethola ukuthandwa kancane kancane futhi ingaqedwa ngisho nakwezinye izibhedlela zasemakhaya. Njengoba inani leziguli ezifakelwa esikhundleni sezinqe landa, iziguli zivame ukukhathazeka ngokuthi i-prosthesis izohlala isikhathi esingakanani ngemva kokuhlinzwa kokufakwa esikhundleni sezinqe nokuthi izohlala impilo yonke yini. Eqinisweni, ukuthi ukufakwa kwesinqe esingasetshenziswa isikhathi esingakanani ngemva kokuhlinzwa kuncike ezicini ezintathu eziyinhloko: 1, ukukhetha izinto zokwakha: okwamanje kunezinto ezintathu eziyinhloko zamalunga ezinqe okwenziwa: ① ikhanda le-ceramic + indebe ye-ceramic: izindleko zizoba phezulu kakhulu. Inzuzo enkulu yale nhlanganisela ukuthi imelana nokuguguleka kakhulu. Ekugugulekeni kwe-ceramic ne-ceramic, umthwalo ofanayo, ukuguguleka nokuklebhuka okuhlobene ne-interface yensimbi kuncane kakhulu, kanti izinhlayiya ezincane ezisele emgodini wamalunga ngenxa yokuguguleka nazo zincane kakhulu, ngokuyisisekelo ngeke kube nokusabela kokwenqatshwa komzimba ezinhlayiyeni ezigugulekayo. Kodwa-ke, esimweni somsebenzi onzima noma ukuma okungafanele, kunengozi encane kakhulu yokugqashuka kwe-ceramic. Kukhona neziguli ezimbalwa kakhulu ezizwa umsindo "wokuklebhuka" obangelwa ukungqubuzana kwe-ceramic ngesikhathi somsebenzi.

②Ikhanda lensimbi + indebe ye-polyethylene: umlando wokusetshenziswa mude futhi uyinhlanganisela yendabuko kakhulu. I-polyethylene ye-polymer yensimbi kuya kwe-polyethylene ephezulu kakhulu, ngokuvamile ayibonakali emsebenzini ine-rattle engavamile, futhi ngeke iphuke njalo njalo. Kodwa-ke, uma iqhathaniswa ne-ceramic kuya ku-ceramic friction interface, iguga kancane ngaphansi komthwalo ofanayo ngesikhathi esifanayo. Futhi enanini elincane kakhulu leziguli ezibucayi, izosabela emfucumfucwini yokuguga, okubangela ukuvuvukala okuzungeze imfucumfucu yokuguga ukuthi kwenzeke, futhi kancane kancane ubuhlungu obuzungeze i-prosthesis, i-prosthesis ikhululeke, njll. ③ Ikhanda lensimbi + i-bushing yensimbi: i-metal kuya ku-metal friction interface (i-cobalt-chromium alloy, ngezinye izikhathi insimbi engagqwali) Lesi sixhumanisi sokungqubuzana sisetshenziswe ngawo-1960. Kodwa-ke, lesi sixhumanisi singakhiqiza inani elikhulu lezinhlayiya zokuguga zensimbi, lezi zinhlayiya zingasuswa yi-macrophages, zikhiqize ukusabela komzimba wangaphandle, ama-ion ensimbi akhiqizwa ukuguga nawo angangena egazini, okubangela ukusabela kokungezwani komzimba emzimbeni. Eminyakeni yamuva nje, lolu hlobo lwamajoyinti esixhumi luyekisiwe. ④ Ikhanda le-ceramic kuya ku-polyethylene: Amakhanda e-ceramic aqinile kunensimbi futhi ayizinto zokufakelwa ezimelana nokuklwebheka kakhulu. I-ceramic esetshenziswa njengamanje ekuhlinzeni okufakwe esikhundleni samalunga inendawo eqinile, emelana nokuklwebheka, ebushelelezi kakhulu enganciphisa kakhulu izinga lokuguguleka kwezindawo zokungqubuzana ze-polyethylene. Izinga lokuguguleka okungenzeka kwalesi simila lingaphansi kwensimbi kuya ku-polyethylene, ngamanye amazwi, i-ceramic kuya ku-polyethylene imelana nokuguguleka kakhulu kunensimbi kuya ku-polyethylene! Ngakho-ke, i-hip joint engcono kakhulu yokwenziwa, ngokwezinto ezibonakalayo, i-interface ye-ceramic kuya ku-ceramic. Isizathu sokuphila isikhathi eside kwaleli lunga ukuthi izinga lokuguguleka lincishiswe kaningi izikhathi kuya kaningi uma kuqhathaniswa namalunga angaphambilini, okwandisa kakhulu isikhathi sokusetshenziswa kwamalunga, futhi izinhlayiya zokuguguleka zingamaminerali ahambisana nabantu angabangela i-osteolysis kanye ne-osteoporosis ezungeze i-prosthesis, efaneleka kakhulu ezigulini ezisencane ezinomsebenzi ophezulu. 2. Ukubekwa okunembile kwe-prosthesis yesinqe: ngokubeka okunembile kwe-prosthesis ngesikhathi sokuhlinzwa, i-acetabulum kanye nesiqu se-femoral Ukuqina okuqinile kwe-prosthesis kanye ne-engeli efanele kwenza i-prosthesis ingagxili futhi ingasuki, ngaleyo ndlela ingabangela ukukhululeka kwe-prosthesis.

Ukuvikelwa kwelunga labo le-hip: ukunciphisa ukuthwala isisindo, imisebenzi enzima (njengokukhuphuka kanye nokuthwala isisindo isikhathi eside, njll.) ukuze kuncishiswe ukuguguleka nokwephuka kwe-prosthesis. Ngaphezu kwalokho, vimbela ukulimala, ngoba ukulimala kungaholela ekuqhekekeni okuzungeze i-prosthesis ye-hip, okungaholela ekukhululekeni kwe-prosthesis.

Ngakho-ke, izitho zokufakelwa ze-hip ezenziwe ngezinto ezingahluzi kakhulu, zibeka kahleilunga lesinqekanye nokuvikelwa okudingekayo kwejoyinti lesinqe kungenza i-prosthesis ihlale isikhathi eside, ngisho impilo yonke.