Orthopedic pob txha xis mas yog cov khoom siv kho mob siv hauv kev phais orthopedic. Nws yog tsuas yog siv los txhim kho cov khoom ua ke ua ke ua ke, sau pob txha teeb meem, thiab muab kev txhawb nqa thiab kho hauv pob txha lov. Nws fills qhov sib txawv ntawm cov pob qij txha ua ke thiab cov pob txha pob txha, txo cov hnav thiab dishances kev ntxhov siab, thiab txhim kho kev hloov pauv ntawm kev hloov kho hniav.
Lub ntsiab siv ntawm pob txha cement rau tes yog:
1. Kho pob txha pob txha: pob txha xis tuaj yeem siv los sau thiab txhim kho qhov chaw.
2. Orthopedic phais: Hauv kev phais mob orthopedic, cov pob txha xis yog siv los kho thiab rov tsim kho cov pob txha sib koom ua ke.
3. Pob txha tsis meej kho: pob txha xis tuaj yeem sau pob txha tsis meej thiab txhawb cov pob txha txheem tsim.
Qhov tsim nyog, pob txha xis yuav tsum muaj cov yam ntxwv hauv qab no: (1) Tsim nyog cov txiaj ntsig: (1) (2) Ade Micha kev siv zog muaj zog rau kev ua haujlwm tam sim ntawd; (3) Ua kom muaj tseeb kom muaj kev tso cai kom dej ncig ua si, kev tsiv teb chaws cell, thiab pob txha tshiab ingrowth; (4) Kev ua kom zoo ost fatalisoninductivity thiab osteoinductivity los txhawb cov pob txha tshiab; (5) Nruab nrab biodegrity kom phim txoj kev kho ntawm cov pob txha xis mas cov pob txha tshiab; thiab (6) kev siv tshuaj muaj txiaj ntsig zoo.
Xyoo 1970, cov pob txha xis tau siv raulub tsibCov khoom noj prosthesis, thiab nws kuj tseem siv tau ua cov ntaub so ntswg filling thiab kho cov ntaub ntawv hauv orthopedics thiab kev kho hniav. Tam sim no, cov neeg siv pob txha feem ntau yog tshawb xyuas pob txha muaj xws li polymethyl mely (pmma phoster thiab calcium sulfate pob txha. Tam sim no, cov siv pob txha feem ntau suav nrog polymethyl mentionlate thiab calcium phospate pob txha thiab calcium phosphate pob txha yog cov feem ntau siv. Txawm li cas los xij, calcium sulfate pob txha muaj kev ua haujlwm tsis zoo ntawm calcium sulfate grafts thiab pob txha mos, thiab yuav denade sai. Calcium sulfate pob txha tuaj yeem kho tau nyob rau hauv rau lub lis piam tom qab cog hauv lub cev. Qhov kev cuam tshuam sai sai tsis phim cov pob txha tsim. Yog li ntawd, piv nrog calcium phosphate pob txha xis mas, kev kho mob thiab chaw kho mob ntawm calcium sulfate pob txha yog tsawg heev. PMMA cov pob txha xis yog ib qho acrylic polymer tsim los ntawm kev sib xyaw ob ntu: Kua metylet thiab dynamic metyl mthacrylate-styrene copolymer-styrene copolymer. Nws muaj tsawg monomer residue, tsis muaj nkees ua rau muaj kev ntxhov siab thiab muaj peev xwm txo cov kab mob pob txha tshiab uas muaj tshwm sim los ntawm lub zog ntawm lub zog thiab muaj kuab yas. Lub ntsiab tivthaiv ntawm nws cov hmoov yog polymethyl methamrylate lossis methyl methacrylate-styrene copolymer-styrene copolymer-styrene copolymer-styrees metyl methacrylate monomer.
PMMA cov pob txha ua rau lub zog PMENT muaj cov zog tensile muaj zog thiab condicity, thiab solidifies sai sai, yog li cov neeg mob tau tawm ntawm cov kev ua si thaum ntxov tom qab kev phais mob. Nws muaj cov duab zoo heev, thiab tus neeg teb xov tooj tuaj yeem ua cov plastonity ua ntej tus pob txha ua pob txha ua kom zoo nkauj. Cov khoom muaj kev nyab xeeb kev nyab xeeb zoo, thiab nws tsis yog degraded lossis nqus los ntawm tib neeg lub cev tom qab sib sau hauv lub cev. Cov qauv tshuaj kho tau ruaj khov, thiab cov khoom siv tshuab tau raug lees paub.
Txawm li cas los xij, nws tseem muaj qee qhov tsis zoo, xws li qee zaus ua rau lub cev muaj mob hauv cov hlab ntsha kom nkag mus rau cov hlab ntsha thiab ua rau muaj kuab. Tsis zoo li tib neeg cov pob txha, pob qij txha tseem yuav ua rau lub sijhawm xoob. PMMA monomers tso tawm tshav kub thaum lub sijhawm polymerization, uas yuav ua rau puas tsuaj rau ib puag ncig cov ntaub so ntswg lossis hlwb. Cov ntaub ntawv uas ua rau cov pob txha ua pob txha muaj qee yam cytotoxicity, thiab lwm yam.
Cov khoom xyaw rau hauv cov pob txha xis mas yuav ua rau pob khaus, urticaria, urticaria, urtomea thiab lwm yam tsos mob, thiab muaj cov xwm txheej hnyav, tsis muaj mob anaphylactic yuav tshwm sim. Kev ua xua ua xua yuav tsum tau ua ua ntej siv kom tsis txhob muaj kev ua xua. Cov kev sib raug zoo rau cov pob txha muaj xws li cov pob txha cient tsis haum, cov pob txha xis xoob, pob txha xis thiab tshem tawm. Cov pob txha ua rau pob txha yuav ua rau cov tshuaj yaj thiab tshuaj lom, thiab tej zaum yuav muaj cov hlab ntsha ua kom zoo thiab cov hlab ntshav, coj mus rau qhov teeb meem. Cov pob txha xis yooj yim yog qhov txhim khu kev qha thiab tuaj yeem nyob ntev dua kaum xyoo, lossis ntau tshaj li nees nkaum xyoo.
Pob txha phais plab yog ib qho kev phais mob tsis raug, thiab nws lub npe scientific yog vertebproplasty. Pob txha xis yog cov khoom siv polymer nrog cov fellity zoo ua ntej solidification. Nws tuaj yeem yooj yim nkag mus rau hauv vertebrae los ntawm puncture rab koob, thiab tom qab ntawd diffuse raws qhov xoob sab hauv pob txha lov ntawm lub vertebra; Pob txha cement acolicifies nyob rau hauv li 10 feeb, nyem cov nrib pleb hauv cov pob txha, thiab cov tawv nqaij tawv xis tuaj yeem ua lub pob txha uas txhawb nqa sab hauv cov pob txha, ua kom muaj zog vias sab hauv. Txheej txheem kev kho mob tsuas yog siv 20-30 feeb.
Txhawm rau kom tsis txhob diffusion tom qab kev txhaj tshuaj nyem xis, ib hom tshiab ntawm kev phais cov cuab yeej tau tsim, uas yog cov khoom siv vertebrasty. Nws ua rau muaj kev phais me me ntawm tus neeg mob rov qab thiab siv tshwj xeeb lub hnab tawg kom ua rau daim tawv nqaij pob txha caj dab los ntawm cov duab xoo hluav taws xob. Tom qab ntawd lub zais pa tau ntxig rau cov duab uas muaj cov pob txha caj qaum, thiab tom qab ntawd pob txha xis tau txhaj rau lub cev txha caj qaum los kho cov tsos ntawm lub cev txha caj qaum. Cov cancelous pob txha hauv lub cev txha caj qaum yog tsim los ntawm kev tiv thaiv cov pob txha tiv thaiv, yog li txo cov pob txha ua kom loj hlob. Nws tuaj yeem txo qhov teeb meem ntawm kev sib txawv ntawm kev txaj muag pw, xws li kev mob ntsws, tso zis, thiab tsis txhob ua rau mob plab vim yog lub sij hawm ntev ntev.
Yog tias PKP phais tau ua, tus neeg mob feem ntau yuav tsum so hauv txaj tsis pub dhau 2 teev tom qab phais tas, thiab tuaj yeem tig rau ntawm lub axis. Nyob rau lub sijhawm no, yog tias muaj kev txawv txav los yog qhov mob tsis zoo ntxiv, tus kws kho mob yuav tsum raug ceeb toom rau lub sijhawm.
Nco tseg:
① Zam kev sib tw loj-ntev sib hloov thiab cov kev ua si khoov;
Tsis txhob zaum lossis sawv ntev ntev;
③ Zam kev coj tus yam hnyav lossis khoov mus nqa cov khoom rau hauv av;
Tsis txhob muaj qhov quav ntawm cov quav qis;
Tsis txhob muaj kev poob khoom thiab kev rov ua dua ntawm kev ua pob txha.
Lub Sijhawm Post: Nov-25-2024
