goi nhan tao toan phan
*BS. PHAM THE HIEN nhau theo cau tnic cd hpc ban ll.
Khdp gdi loai ndy duoc chi dinh khi he thfi'ng day chdng khdng du vflng vdng d l ndng dd khdp nhan tao - khdp gfi'i mat viftig. Bdc si thudng khfing chi dinh dung loai ndy trong lan thay khfl^ gdi ddu tifin do khdp ndy mau mdn hdn cdc loai khdp gfi'i nhdn tao khdc. Khdp chi dUffc chi dinh khi cho ngfldi ldn tuoi ldng 1^0 khdp hay trong tnfdng hap thay lai khdp gdi.
P h a n c h i a n h d m n h o hcfn di^a v a o e a c h cd' d i n h c u a Idrp lot p o l y e t h y l e n va t h a n h p h ^ n m d m c h a y
# Fixed Bearing: Gpi Id fixed bearing vi ldp dem polyethylen duac c l dinh chde chdn vdo thdnh phdn kim loai cua xUang chdy.
Thdnh phdn cua xifdng dui se lan trfin lien kg't ndy. Dang khdp gfi'i nay dUdc thiet ke de mang lai khd ndng vgn dgng tdt vd dO b i n khi sii dung cho hau h i t cdc benh nhan.
Nhifng ddi vdi bgnh nhdn cfl nhu cau hoat dfing nhieu hodc bgnh nhdn bi b6o phi thi khdp loai ndy mau bi hao mfln. Khi hien tfldng mdn xay ra, cac thanh phdn kim loai gdn vdo xUdng se ldng ddn gay dau khdp nhan tao.
truc xoay ' ^
phan XUdng chAy phang cd the xoay quanh phdn mdm chdy. Do vgy khdp gdi nhdn tao cho phfip ban xoay trong va xoay ngodi, tdng dp linh boat khdp gii.
Cung chinh vi co the xoay diftfc.
Mobile Bearing doi hdi thdnh phdn ddy chang quanh khdp go'i phai du chde vd viing d l gifl khdp gii nhdn tao tranh khdp hi trdt. Bdc si se thdm khdm vd quylt dinh dung loai nay hay Idifing. Gid tiln cua Mobile Bearing se dat htfn loai Fixed Bearing.
Hifin tai van chfla cfl nghien cflu chChig td Mobile Bearing cai thign chflc ndng, gidm trifiu chflng dau hay ben htfn loai Fixed Bearing.
# Medial Pivot (logi kh&p got tjii phta trong): Cdc nghign ciiu ve giai phdu chflc ndng cho t h i y khdp gdi tu nhifin khi gdp du8i, phdn ddu dudi xfldng dui se xoay
Khdp gSi Fixed Bearing: ldp polyethylen dUpc giU trong khay mim chay (c6 gd)
* Mobile Bearing: Ng'u ban con trd tuli, nhu cdu ban cdn vdn ddng nhieu hay b^n qud can bdc si se d l nghi loai khdp gdi nhdn tao Mobile Bearing. Ddy Id loai khdp goi cd t h i xoay, diitfc thiet k l thich htfp sao cho dfi ben lau n h l t . Sif khdc nhau gifla Fixed Bearing vd Mobile Bearing Id ldp polyethylen THUdc & StfC KHOE sdSlO (15.10.2014)
Khdp g6i Medial Pivot
quanh ldi cau phia bfin trong. Khi gap gii, phdn lli cdu ben ngodi ldn di chuyen trUdc sau tren sun chgm. Trong khi do lli cdu ben trong chi xoay vd lan tai chl.
Loai khdp nhdn tao Medial Pivot nay cfl cau tao gdn nhu khdp goi tlf nhign.
Phtftfng ti ^ n co' d i n h c u a d u n g cu v a c xtfoing
Slf khac nhau cua phfldng phdp phdu thudt Id c l dinh thdnh phdn nhan tao vao xUdng. Co 3 phfldng phdp: dung xi mdng sinh hpc, khdng dung xi mdng vd k i t hdp cd2.
^Dungxi mar^de k^t dinh:
Da so' cdc phdu thudt deu dimg xi mang sinh hoc d l gdn k i t dung cu nhdn tao vdi xUtfng giup gifl viing cdc thdnh phdn tao dieu kifin cho mdt khdp tilp xuc dung vdi nhau.
Dung xi mang de k i t nli cho ke't qua t i t vdi cdc loai khdp khdc nhau. Nhfltfc dilm hay gdp d ngfldi tre hoat dfing nhieu Id sif long ldp xi mang hoac xay ra sau khodng 15 - 20 nam sfl dung.
* Khong xi mdng: Dung cu duoc dfldc kham ldp kim loai d l tao cac lo nhd cho xUdng moc vdo giup lifin ke't gifla xUtfng va thanh phdn nhdn tao. Da sd' cac phdu thudt vifin diu sfl dung loai cd xi mdng vi loai khfing xi mang dfli hdi dp chinh xdc htfn gifla cac mdt cdt va dtfi chd thdi gian xUtfng mpc vdo cdc dung cu nhdn tao de gifl viing.
Hifin nay d Vigt Nam thfldng cdc phdu thudt vifin lfla chpn thay khdp gii todn phdn, loai hy sinh ddy chdng chdo sau, Fixed Bearing hodc Mobile Bearing. Ngodi ra, trong tflng tnfdng hdp dac bigt, bdc si se yfiu cdu vd trao dli vdi ban ve loai khdp ddc biet thich htfp cho ban. Hy vpng bdi vilt nay se giup ban hilu rd htfn v l loai khdp minh hodc ngfldi nha dang sfl dung, w
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