Iimboniselo: 35 uMbhali: Ixesha lokupapasha loMhleli weSiza: 2022-09-07 Imvelaphi: Isiza
I-prosthesis enesamente yindlela esetyenziswa ngokubanzi yokufakelwa kwamathambo kwi-joint replacement surgery. Esikhundleni sokuthembela kwi-ingrowth yamathambo e-biological, i-implant iqiniswe ngokusebenzisa i-samente yethambo-ngokuqhelekileyo i-polymethyl methacrylate (PMMA)-ukufezekisa ukulungiswa komatshini ngokukhawuleza phakathi kwe-prosthesis kunye nethambo lomkhosi.
Esi sicwangciso sokulungisa siye saqinisekiswa ngokweklinikhi amashumi eminyaka kwaye sihlala siyindlela ethembekileyo kwi-arthroplasty yanamhlanje, ngokukodwa kwizigulane zezigulane apho umgangatho wamathambo unciphisa ukusebenza kwe-press-fit okanye ukulungiswa kwe-cementless.

I-samente yethambo ayisebenzi njenge-adhesive biological. Endaweni yoko, isebenza njengonxibelelwano lokuhambisa umthwalo ogcwalisa izithuba ezincinci phakathi kwendawo yokufakelwa kunye nethambo elirhoxisayo. Ngokudibanisa kwesamente, uxinzelelo lusasazwa ngokulinganayo, lunciphisa i-micromotion kwi-implant-bone interface.
Oku kuzinza komatshini kubaluleke kakhulu ngexesha lokuqala emva kokusebenza, xa ukulungiswa ngokukhawuleza kuxhasa ukuhlanganiswa kwangaphambili kunye nokubuyisela ukusebenza. Ukuqonda okubanzi kokuziphatha kwesamente kunye nezixhobo, abafundi bahlala bebhekisa kwizicelo ze-samente yamathambo kwiinkqubo ezidibeneyo zokutshintshwa.
Iiprostheses ezenziwe ngesamente ziqhele ukucetyiswa kwizigulana esele zikhulile, abantu abane-osteoporosis, okanye abaguli abanesitokhwe esincitshisiweyo samathambo. Kwezi meko, ukufezekisa ukulungiswa okuthembekileyo kwebhayoloji ngokufakelwa kwesamente kunokuba ngumngeni.
Ukulungiswa kwesamente kunika uzinzo oluqikelelwayo kungakhathaliseki ukuba ubuninzi bamathambo, okwenza kube yinto ekhethiweyo xa ukulungiswa ngokukhawuleza kunye nokuhanjiswa komthwalo olawulwayo kuyadingeka.
Kwi-hip arthroplasty, iziqu ze-femoral cemented zikhethwa rhoqo kwizigulane ezifuna ubunzima bokuqala okanye zikhoyo kunye nomgangatho wethambo lobufazi. Kwi-knee arthroplasty, i-tibial cemented components kunye namaqhosha e-patellar ahlala esebenza ngokusemgangathweni kwimimandla emininzi yehlabathi.
Ezi nkqubo ziqhele ukwenziwa kusetyenziswa umgangatho i-hip joint replacement prosthesis kunye iinkqubo zokutshintshwa kwamadolo ahlangeneyo , kuxhomekeke kwi-anatomy yesigulane kunye neenjongo zokuhlinzwa.

Enye yeenzuzo eziphambili zeeprostheses ezenziwe ngesamente kukuzinza ngokukhawuleza ukulungiswa. Izigulane zihlala ziqala ukuhlanganiswa kunye nokubuyisela kwangaphambili xa kuthelekiswa neenkqubo ezingenasimenti, ezixhomekeke kwi-osseointegration yexesha elide.
Kwizigulana ezinomgangatho ophantsi wamathambo, ukulibaziseka kokulungiswa kwebhayoloji kunokunyusa umngcipheko wokufuduka kokufakelwa kwangethuba, ukwenza ukulungiswa kwesamente kube yinto ekhuselekileyo nenokucingeleka ngakumbi.
Ngokuhambela phambili kweendlela zokufaka isamente, ukusinda kwexesha elide kwiiprostheses ezenziwe ngesamente kuye kwafaniswa neenkqubo ezingenasimenti. Nangona kunjalo, utyando oluhlaziyiweyo lokufakelwa kwesamente kunokufuna iindlela ezongezelelweyo zokususwa kwesamente, ekufuneka ziqwalaselwe ngexesha lokhetho lokuqala lokufakelwa.
Kwiimeko ezinzima, oogqirha botyando banokuthembela ekuzinikeleni uhlaziyo lokufakela okudibeneyo endaweni eyilelwe ukujongana neziphene zamathambo kunye nemingeni yokulungiswa.
Ukuzinza ngokukhawuleza komatshini ngexesha lotyando
Ukulungiswa okuqikelelweyo kwizigulane ezinomgangatho ophantsi wamathambo
Ukunciphisa umngcipheko wokufakelwa kwangaphambili kwe-micromotion okanye ukufuduka
Iziphumo zeklinikhi eziqinisekisiweyo zexesha elide
Naphezu kweenzuzo zayo, ukulungiswa kwe-cemented kuhambelana nemingcipheko ethile, kubandakanywa ne-cement implantation syndrome, imiphumo ye-thermal ngexesha le-polymerization, kunye nokwanda kobunzima bobugcisa ngexesha leenkqubo zokuhlaziya. Le mingcipheko iyancipha kakhulu xa kulandelwa iinkqubo ezifanelekileyo zesamente kunye neendlela zotyando.
Iindlela zesamente zanamhlanje zidlala indima ebalulekileyo ekwandiseni amandla okulungisa kunye neziphumo zexesha elide. Amanyathelo aphambili abandakanya ukulungiswa komsele ofanelekileyo, ukuxutywa kwe-vacuum ye-samente yamathambo, kunye nokulawulwa kwe-cement pressurization ukuphucula ukungena kwithambo elikhansela.
Ezi zixhobo ngokuqhelekileyo zenziwa kusetyenziswa ukuzinikela izixhobo zotyando lwe-orthopedic for joint replacement , ezinceda ukuqinisekisa ukuhambelana kunye nokuveliswa kwakhona ngexesha lokufakelwa.
Iiprostheses ezenziwe ngesamente zihlala zisisisombululo esithembekileyo nesiqinisekisiweyo ngokweklinikhi kuqhaqho oludibeneyo. Xa izinto ezithile zesigulane-ezifana nokuguga, ukunciphisa umgangatho wamathambo, okanye isidingo sokuzinza ngokukhawuleza emva kokuhlinzwa-zikhoyo, ukulungiswa kwe-cemented kuyaqhubeka kudlala indima ebalulekileyo kwi-orthopedic yanamhlanje.
Endaweni yokutshintshwa kweenkqubo ezingenasamente, iiprostheses ezenziwe ngesamente ziye zavela ecaleni kwenkqubela phambili kubuchule botyando kunye noyilo lokufakelwa, ukugcina ukubaluleka kwazo kwi-arthroplasty yangoku.
Ukulungiswa kwe-cemented kudla ngokukhethwa kwizigulane ezisebekhulile kuba kunika ukuzinza ngokukhawuleza kwaye akuxhomeki kwi-ingrowth yamathambo, enokuthi inqunyelwe ngenxa yokunciphisa amathambo.
Ngokukhethwa kwesigulane esifanelekileyo kunye nobuchule obufanelekileyo botyando, iiprothes eziqinileyo zingasebenza ngokufanelekileyo iminyaka eyi-15-20 okanye ngaphezulu.
Ewe. Nangona utyando lohlaziyo lunokuba yimfuneko ngakumbi ngokobuchwephesha ngenxa yokususwa kwesamente, iiprothesthesi ezenziwe ngesamente zinokuhlaziywa ngokukhuselekileyo kusetyenziswa ubuchule botyando obusekiweyo.
I-samente yethambo ye-Medical-grade isetyenziswe kwi-orthopedic utyando amashumi eminyaka kwaye ineprofayili yokhuseleko ebhalwe kakuhle xa isetyenziswe ngokwemigangatho yeklinikhi.
Ewe. Enye yeenzuzo eziphambili zokulungiswa kwesamente kukuzinza kwangoko koomatshini, okuhlala kukuxhasa ukuhlanganiswa kwangaphambili kunye nokuvuselelwa.
Ngokuqinisekileyo. Ukulungiswa kwesamente kuhlala kungumgangatho oqhelekileyo kunye nokwamkelwa ngokubanzi kwiinkqubo ezininzi zokutshintshwa kwe-hip kunye namadolo kwihlabathi jikelele.
Umgangatho wamathambo, ubudala besigulane, inqanaba lomsebenzi, iimeko ze-anatomical, kunye neenjongo zotyando zonke zidlala indima ebalulekileyo ekumiseleni eyona ndlela ifanelekileyo yokulungisa.
Ewe. Iinkqubo zesamente zisetyenziswa rhoqo kwiimeko zohlaziyo, ngakumbi xa iziphene zamathambo zinciphisa ukusebenza kokulungiswa kwebhayoloji.