1. Ngokusho kokuthi i-ligament ebabazekayo yangemuva iyagcinwa
Ngokusho kokuthi i-ligament ebabazekayo yangemuva iyagcinwa, i-presicial knee sterement prosthesis ingahlukaniswa ngokubuyiselwa kwe-ligament ye-ligament ngemuva (ukuqina okuyisisekelo, i-ps) kanye nokugcinwa kwe-cruite, ukugcinwa kwe-cruite, cr). Eminyakeni yamuva nje, i-Tibial Plateau yalezi zinhlobo ezimbili zezinhlobonhlobo zenzelwe amazinga ahlukene okuhambisana nobubanzi bekholomu ephakathi ngokomqondo kanye nokuqina kodokotela ohlinzayo, ukuze uthuthukise ukusebenza kwe-kinematic.
(1) Izici ze-CR ne-PS prostheses:
The cr prosthesis ugcina i-ligament ngemuva kweukuhlanganiswa kwedolofuthi yehlisa inani lezinyathelo zokuhlinzwa; Igwema ukubekezelela okwengeziwe kwe-somerdyle yowesifazane futhi ilondoloze isisindo sethambo; Ngokweqiniso, kungakhuphula ukuqina kokuguquguquka, kunciphise ukuthunyelwa kwe-anteractivation ye-anterior, futhi kufinyeleleke emuva emuva. Isiza ukulondolozwa kwe-proprioception.
I-PS prosthesis isebenzisa isakhiwo sekholomu ye-cam ukushintsha umsebenzi wesiphambano sangemuva ekwakhiweni, ukuze i-promord prostheris ingahle igoqwe emuva ngesikhathi semisebenzi yokuguquguquka. Ngesikhathi sokuhlinzwa, Thei-someral intercondylarI-Osteotomy iyadingeka. Ngenxa yokususwa kwe-ligament ebabazekayo yangemuva, igebe le-flexion likhulu, i-maneuver yangemuva kulula, futhi ibhalansi ye-ligament ilula futhi iqonde kakhudlwana.
(2) Izinkomba zokulinganisa ze-CR ne-PS prostheses:
Iningi leziguli elibhekene nezona eliphelele le-knee arthroplasty lingasebenzisa noma i-C Cl prosthesis noma i-PS prosthesis, kanye nokukhethwa kwe-prosthesis kuncike kakhulu esimweni sesiguli kanye nolwazi lodokotela. Kodwa-ke, cr prosthesis kufanelekile kakhulu ezigulini ezinomqondo ojwayelekile we-rucatiate rucatiate ruciate, i-hyperplasia ehlanganisiwe ehlanganayo, nokukhubazeka okuncane okuhlangene. Ama-PS prostheses angasetshenziswa kabanzi ekubuyiseleni okuphelele kwe-knee ephelele, kufaka phakathi iziguli ezine-hyperplasia ezinzima nokukhubazeka. Ezigulini ezinezifo ezinzima ze-osteoporosis noma amathambo amathambo, izinduku ezandisayo ezingahle zizodingeka, futhi kungafuneki ukuthinta okuncane kwe-ligament. Sebenzisa ama-spacers anqunyelwe.
2. Ipulatifomu elungisiwe kanye neplatifomu eshukumisayo prost
Okwenziwe ngobucikoi-knee ehlanganayo proskesisIngahlukaniswa ibe yiplatifomu ehleliwe bese ipulatifomu eshukumisayo ngokuya ngendlela yokuxhuma ye-polyethylene gasket kanye ne-metal tibial tray. I-Fixed Platform Platthesis iyingxenye ye-polyethylene eqondiswe ethafeni le-tibial ngenqubo yokukhiya. Ingxenye ye-polyethylene yesikhulukazi sepulatifomu prosthesis ingahamba ethafeni le-tibial. Ngaphezu kokwakha okuhlangene okuhambisanayo nge-prosthesis yesifazane, i-polyethylene spacer ibuye ivumele izinga elithile lokuhamba phakathi kwethafa le-tibial nethafa leTibial.
Ipulatifomu yepulatifomu ye-prosthesis gasket ikhiyiwe ku-batal bracket, eqinile futhi ethembekile, futhi isetshenziswa kabanzi. Ama-geometries ama-spacer alungiswayo angahlukahluka kusuka kumkhiqizi abe ngumenzi wokufanisa i-prostheratisis yazo eyingqayizivele futhi athuthukise ama-kinematics afunekayo. Kungashintshwa kalula kube yi-shim evinjelwe uma kudingeka.
Isikhathi Sokuthumela: I-Sep-10-2022
