1. Raws li qhov kev txiav txim siab postior ua txhaum cai
Raws li cov posterior ua txhaum cai rau kev hloov pauv ua ntej, psterior sib zog ua tiav (psterior stridiaes lig Nyob rau hauv xyoo tsis ntev los no, The Tibial Plateau ntawm ob hom mob prostheses tau raug tsim qauv ntawm kev sib koom tes ntawm kev sib koom tes, yog li txhawm rau txhim kho kev ruaj ntseg ntawm kev sib koom tes thiab txhim kho cov kinematic ua tau zoo.
(1) Cov Nta ntawm CR thiab PS Prostheses:
Cov phiaj xwm Cristhesis khaws cov ntoo tom ntej ntawm txoj cai ntawm lublub hauv caug sib koom testhiab txo cov qib kev phais mob; nws zam cov kev rov qab ntxiv ntawm cov femoral condyle thiab khaws cov pob txha loj; theoretically, nws tuaj yeem nce flexion ruaj khov, txo cov paradoxical anterior kev tsiv, thiab ua tiav rov qab dov. Pab kom muaj tswv yim
PSTH Proses lub qauv cam-kem los hloov cov kev ua haujlwm ntawm tus qauv tom qab ntawm tus qauv tsim, yog li ntawd tus poj niam prosthesis tuaj yeem dov rov qab thaum lub sijhawm ua si flexion. Thaum lub sijhawm ua haujlwm, tusFemoral Intercondylarosteotomy yog yuav tsum tau. Vim tias qhov kev tshem tawm ntawm qhov chaw ntoo khaub ncaws tom qab loj dua, qhov loj tshaj plaws, thiab cov kab ke txuas tau yooj yim, thiab cov kev sib npaug ntawm txoj kev ua kom yooj yim dua.
(2) Tus txheeb ze cov lus qhia ntawm CR thiab PS Prostheses:
Cov neeg mob feem ntau tau txais cov thawj lub hauv caug arthroplasty tuaj yeem siv cov plees prosthesis lossis cov kev xaiv ntawm prosthesis, thiab cov kev xaiv ntawm prosthesis, thiab cov kev xaiv ntawm prosthesis, thiab cov kev xaiv ntawm prosthesis, thiab cov kev xaiv ntawm prosthesis, thiab cov kev xaiv ntawm prosthesis, thiab cov kev xaiv ntawm prosthesis, thiab cov kev xaiv ntawm prosthesis, thiab cov kev xaiv ntawm prosthesis, thiab cov kev xaiv ntawm prosthesis, thiab kev xaiv ntawm prosthesis, thiab cov kev xaiv ntawm prosthesis, thiab cov kev xaiv ntawm prosthesis, thiab cov kev xaiv ntawm prosthesis yog feem ntau ntawm tus neeg mob thiab kws kho mob muaj kev paub. Txawm li cas los xij, Crosthesis yog qhov tsim nyog dua rau cov neeg mob tom qab muaj kev ua txhaum cai loj leeb, thiab mob sib koom ua ke me me. PS Qhov prosteses tuaj yeem ua tau dav hauv feem ntau cov pob hauv caug tag nrho, suav nrog cov neeg mob uas muaj kev lom zem heev thiab tsis zoo. Hauv cov neeg mob uas muaj pob txha pob txha lossis pob txha tsis meej, cov pas nrig intramatarly ntev yuav tsum muaj, thiab collateral lig sysfunction tej zaum yuav tsum muaj. Siv cov tsiaj txwv.
2. Taag platform thiab txav tau platform prosthesis
Lub daglub hauv caug sib koom ua ke prosthesistuaj yeem faib ua cov platform thiab txav tau yooj yim raws li txoj kev sib txuas ntawm polyethylene gasket thiab hlau twv. Taag platform prosthesis yog polyethylene sib xyaw tsau rau cov tibial toj siab los ntawm lub tshuab xauv. Cov polyethylene tivthaiv ntawm lub rooj nqus dej platform prosthesis tuaj yeem txav mus rau ntawm tibial Plateau. Ntxiv rau kev sib koom ua ke nrog kev sib koom ua ke nrog tus poj niam prosthesis, cov polyethylene spacer tseem tso cai rau qee qhov kev txav ntawm tib lub Plaveyu thiab lub Pliableau.
Lub chaw ruaj khov platform prosthes raug kaw ntawm cov hlau nkhaus, uas yog khov kho thiab txhim khu kev qha, thiab yog siv dav ntau. Cov geometries ntawm cov txheej txheem txheej txheem txuas tau tuaj yeem sib txawv ntawm cov chaw tsim khoom lag luam rau cov chaw tsim khoom kom phim lawv cov kev nyiam ua haujlwm prosthesis thiab txhim kho qhov xav tau kev xav kinematics. Nws tseem tuaj yeem hloov tau yooj yim rau kev txwv shim yog tias yuav tsum tau ua.
Lub Sijhawm Post: Sep-10-2022
