I-hip replacement prosthesis ihlala isikhathi esingakanani?

I-Hip arthroplasty iyindlela yokuhlinzwa engcono yokwelapha i-femoral head necrosis, i-osteoarthritis yejoint of hip, kanye nokuphuka kwethambo.femoralintamo eminyakeni yobudala.I-Hip arthroplasty manje isiyinqubo evuthiwe kancane kancane ethola ukuthandwa futhi ingaqedwa ngisho nakwezinye izibhedlela zasemakhaya.Ngokukhula kwenani leziguli ezishintsha i-hip, iziguli zivame ukukhathazeka ngokuthi i-prosthesis izohlala isikhathi esingakanani ngemva kokuhlinzwa esikhundleni se-hip nokuthi izohlala impilo yonke.Eqinisweni, isikhathi esingakanani ukushintshwa okuhlangene kwe-hip kungasetshenziswa ngemva kokuhlinzwa kuncike ezintweni ezintathu eziyinhloko: 1, ukukhethwa kwezinto zokwakha: okwamanje kunezinto ezintathu ezibalulekile zamalunga e-hip yokwenziwa: ① ikhanda le-ceramic + indebe ye-ceramic: izindleko zizoba ngokuqhathaniswa. phezulu.Inzuzo eyinhloko yale nhlanganisela ukuthi ifana kakhulu nokugqoka.Ku-ceramic kanye ne-ceramic friction, umthwalo ofanayo, ukuguga nokuklebhuka okuhlobene nesixhumi esibonakalayo sensimbi kuncane kakhulu, futhi izinhlayiya ezincane ezisele emgodini ohlangene ngenxa yokuguga nokudabuka nazo zincane kakhulu, ngokuyisisekelo ngeke kube khona ukusabela kokwaliwa komzimba. ukugqoka izinhlayiya.Kodwa-ke, esimweni somsebenzi onzima noma ukuma okungalungile, kunengozi encane kakhulu yokuqhekeka kwe-ceramic.Kukhona futhi iziguli ezimbalwa kakhulu ezizwa umsindo othi "creaking" obangelwa ukungqubuzana kwe-ceramic phakathi nomsebenzi.

②Ikhanda lensimbi + inkomishi ye-polyethylene: umlando wohlelo lokusebenza mude futhi uyinhlanganisela yakudala kakhulu.I-Metal kuya ku-ultra-high polymer polyethylene, ngokuvamile ayiveli emsebenzini ine-rattle engavamile, futhi ngeke iphuke njalonjalo.Kodwa-ke, uma iqhathaniswa ne-ceramic kuya ku-ceramic friction interface, igqoka kancane kancane ngaphansi komthwalo ofanayo ngesikhathi esifanayo.Futhi ngenani elincane kakhulu leziguli ezizwelayo, lizosabela ekugugeni kwemfucumfucu, okubangela ukuvuvukala okuzungeze imfucumfucu egugayo ukuze kwenzeke ekuphenduleni, futhi kancane kancane ubuhlungu obuzungeze i-prosthesis, ukuxegiswa kwe-prosthesis, njll. ③ Ikhanda lensimbi + insimbi yensimbi: insimbi ku-metal friction interface (i-cobalt-chromium alloy, ngezinye izikhathi insimbi engagqwali) Lesi sikhombimsebenzisi sokungqubuzana sisetshenziswe ngawo-1960.Kodwa-ke, lesi sikhombimsebenzisi singakhiqiza inani elikhulu lezinhlayiya zokugqoka zensimbi, lezi zinhlayiya zingase zifakwe i-phagocytosed ngama-macrophages, zikhiqize ukusabela komzimba wangaphandle, ukugqoka ama-ion ensimbi akhiqizwa kungase futhi kungene egazini, okubangela ukusabela komzimba emzimbeni.Eminyakeni yamuva nje, lolu hlobo lwamajoyinti okuxhumana luyekiwe.④ Ikhanda le-Ceramic kuya ku-polyethylene: Amakhanda e-Ceramic aqinile kunensimbi futhi ayizinto zokufakelwa ezikwazi ukumelana kakhulu.I-ceramic esetshenziswa njengamanje ekuhlinzeni okuhlanganyelwe inendawo eqinile, engaklwebhi, nebushelelezi enganciphisa kakhulu izinga lokuguga lokuhlangana kwe-polyethylene friction.Izinga lokuguga okungenzeka lalokhu okufakelwayo lingaphansi kwensimbi kuya ku-polyethylene, ngamanye amazwi, i-ceramic kuya ku-polyethylene ngokusobala imelana kakhulu nensimbi kune-polyethylene!Ngakho-ke, inhlanganisela ye-hip yokwenziwa engcono kakhulu, ngokwemibandela yezinto ezibonakalayo, inhlanganisela ye-ceramic-to-ceramic interface.Isizathu sempilo ende yesevisi yalesi sihlanganiso ukuthi izinga lokugqoka lincishiswa izikhathi eziyishumi izikhathi ezingamakhulu uma kuqhathaniswa namalungu angaphambilini, ukwandisa kakhulu isikhathi sokusetshenziswa ngokuhlanganyela, futhi izinhlayiya zokugqoka zingamaminerali ahambisana nomuntu kubangela i-osteolysis kanye ne-osteoporosis ezungeze i-prosthesis, efaneleka kakhulu ezigulini ezincane ezinomsebenzi ophezulu.2. Ukubekwa okunembile kwe-hip prosthesis: ngokubekwa okunembile kwe-prosthesis ngesikhathi sokuhlinzwa, i-acetabulum ne-femoral stalk Ukulungiswa okuqinile kwe-prosthesis kanye ne-angle efanelekile kwenza i-prosthesis ingagxili futhi ingagudluki, ngaleyo ndlela ingabangeli ukukhululeka kwe-prosthesis. i-prosthesis.

Ukuvikelwa kwe-hip joint yabo: ukunciphisa ukuthwala isisindo, imisebenzi enzima (njengokukhuphuka nokuthwala isisindo isikhathi eside, njll.) ukunciphisa ukuguga nokudabuka kwe-prosthesis.Ukwengeza, vimbela ukulimala, ngoba ukuhlukumezeka kungabangela ukuphuka ezungeze i-hip prosthesis, okungaholela ekukhululweni kwe-prosthesis.

Ngakho-ke, ama-hip prostheses enziwe ngezinto ezingaqhumeki kancane, ukubekwa okunembile kwei-hip jointfuthi ukuvikelwa okudingekayo kokuhlanganiswa kwe-hip kungenza i-prosthesis ihlale isikhathi eside, ngisho nokuphila konke.