Cementless femoral qia ntawm lub duav prosthesis

Lub hauv caug pob qij txha muaj lub qhov (socket), hauv ob sab phlu, pob taub hau, kov thiab lwm yam khoom. Txhua yam khoom muaj ntau yam ntaub ntawv thiab specifications. Cov khoom siv thiab cov qauv xaiv raws li kev phais lub duav sib txawv. Muaj ob hom stems: cement stems thiab bio-joint stems. Cov kab mob lom neeg uas peb tam sim no siv thoob ntiaj teb yog cov qauv peb-dimensional wedge-shaped, uas yog siv los txhim kho kev sib kis ntawm kev ntxhov siab thiab txhim kho kev ruaj ntseg ntawm qhov kawg ntawm lub qia. Qhov zoo tshaj plaws qia kawg tsim ua rau kom muaj kev ruaj ntseg ntawm lub pob taub hau, thiab lub caj dab polished heev yog refined los txhim kho qhov ntau ntawm cov lus tsa suab ntawm cov prosthesis. Qhov sib thooj zawj yog perpendicular rau cov kev taw qhia ntawm kev ntxhov siab conduction, uas yog conducive rau sai osseointegration thiab zoo pib stability. Qhov saum npoo ntawm qia lub cev yog tag nrho coated nrog plasma titanium slurry, thiab cov ntxeem tau txheej yog haum rau cov pob txha ingrowth thiab tau txais qhov zoo tshaj plaws mus sij hawm ntev fixation nyhuv. Lub anterior thiab posterior npoo ntawm lub intramedullary rasp muab ib tug zoo xovxwm haum rau cov pob txha tshem tawm, ua rau kom cov kev sib cuag ntawm lub prosthesis thiab cov pob txha, thiab muab qhov zoo tshaj plaws locking mechanism ntawm lub qia los tiv thaiv lub qia los ntawm sinking. Lub caj dab qhuav thiab ko taw yog 135 degrees. Nws tuaj yeem yog cov khoom tshwj xeeb rau DAA txoj hauv kev. Nws qhov zoo yog qhov tiag tiag intermuscular mus kom ze, uas muaj lub sij hawm rov qab luv luv, lub sij hawm rov qab luv luv rau kev tawm dag zog txhua hnub, txo tus neeg mob qhov mob, txo lub sij hawm mus pw hauv tsev kho mob, thiab txo qhov kev pheej hmoo ntawm dislocation. Lub femoral prosthesis yog kho nrog lub xub pwg shaving los khaws cov pob txha loj ntawm cov trochanter ntau dua, uas yog tsim rau kev cog qoob loo ntawm DAA tsawg heev. Qhov kawg ntawm tus kov lub cev yog thickened, lub distal kawg yog nqaim, thiab lub shortened ntev tsim kom ruaj khov thiab pab implantation.
Cov polished sab nrauv ntawm cov cement qia muaj cov cement zoo heev, ua raws li kev xav hauv ntuj tsim, tso cai rau cov pob zeb hauv av me ntsis hauv cov cement sheath, thiab yog tsim los nrog cov duab peb sab los txo cov cement kev nyuaj siab. Nruab nrog lub distal plug thiab ib tug inserter los xyuas kom meej qhov chaw ntawm lub prosthesis nyob rau hauv lub medullary kwj dej. Nws lub caj dab qia kaum yog 130 degrees. Simulate qhov tseeb hip motion kaum mus rau qhov loj tshaj plaws.
Tam sim no, qhov saum npoo ntawm lub qhov (socket) hlau yog feem ntau kho nrog lub tshuab nqus tsev plasma titanium slurry. Cov txheej ntxeem tau yog qhov zoo rau cov pob txha ingrowth thiab kho lub sijhawm ntev. Lub optimized latch tsim ua rau kom muaj kev ruaj ntseg ntawm lub khob thiab hauv ob sab phlu. Peb kuj muab ntau lub qhov (sockets). Kev xaiv ntawm cov ntaub qhwv kom haum rau cov kev xav tau ntawm cov neeg mob sib txawv.
Lub taub hau pob muaj lub taub hau ceramic, thiab lub taub hau hlau yog muaj. Lub taub hau ceramic pob yog cov khoom siv ceramic thib plaub BIOLOXdelta cov khoom sib xyaw, uas muaj cov khoom siv biocompatibility zoo, zoo sib npaug thiab lubricating zog, hnav tsis tshua muaj, thiab ua tiav tag nrho nrog lub taper ntawm golden femoral qia. Lub taub hau hlau pob yog ua los ntawm cobalt-chromium-molybdenum alloy nrog high polished nto technology.
Qhov saum npoo ntawm lub taub hau bipolar siv nyob rau hauv hemi-hip hloov yog polished, nrog ib tug tsawg coefficient ntawm kev sib txhuam. Kev tsim dual-nruab nrab kom ntseeg tau qhov siab tshaj plaws ntawm kev txav ntawm lub duav sib koom ua ke thiab txo qhov hnav tus nqi. Classic loj-ntiv nplhaib xauv tsim muaj kev ua tau zoo los tiv thaiv kev cuam tshuam. Ntau yam kev qhia tshwj xeeb ntawm cov khoom no muaj rau cov kws kho mob xaiv raws li qhov sib txawv ntawm tus neeg mob, uas muaj txiaj ntsig zoo rau tus neeg mob rov qab ua ntej.