1. Maererano kana posterior cruciate ligament yakachengetedzwa
Zvinoenderana nekuti iyo posterior cruciate ligament yakachengetedzwa, iyo yekutanga yakagadzirwa ibvi inotsiva prosthesis inogona kukamurwa kuita posterior cruciate ligament replacement (Posterior Stabilized, PS) uye posterior cruciate ligament retention (Cruiate Retention, CR).Mumakore achangopfuura, iyo tibial plateau yemhando mbiri idzi dzeprostheses dzakagadzirwa nemhando dzakasiyana-siyana dzekuenderana uye hupamhi hwepakati pembiru maererano nekugadzikana kwejoini, basa rejini uye pfungwa yechiremba anovhiya, kuitira kuti kuvandudza kugadzikana kwekubatana uye kugadzirisa kinematic performance.
(1) Zvimiro zveCR uye PS prostheses:
Iyo CR prosthesis inochengetedza posterior cruciate ligament yeibvi rakabatanauye inoderedza kuwanda kwematanho ekuvhiya;inodzivisa kuwedzera kubviswa kwechikadzi condyle uye inochengetedza mapfupa;ne theoretically, inogona kuwedzera kugadzika kwekuchinjika, kuderedza paradoxical anterior displacement, uye kuwana kumashure kukunguruka.Inobatsira kuchengetedza proprioception.
Iyo PS prosthesis inoshandisa cam-column chimiro kutsiva basa remuchinjiko wepashure mukugadzira, kuitira kuti iyo femoral prosthesis inogona kukungurutswa kumashure panguva yekuchinjika mabasa.Panguva oparesheni, thefemoral intercondylarosteotomy inodiwa.Nekuda kwekubviswa kweiyo posterior cruciate ligament, iyo gap yekuchinjika yakakura, iyo posterior maneuver iri nyore, uye ligament balance iri nyore uye yakatwasuka.
(2) Hukama zviratidzo zveCR uye PS prostheses:
Varwere vazhinji vari pasi pekutanga mabvi arthroplasty vanogona kushandisa CR prosthesis kana PS prosthesis, uye kusarudzwa kweprosthesis kunoenderana zvakanyanya nemamiriro emurwere uye ruzivo rwechiremba.Zvisinei, CR prosthesis inonyanya kukodzera kuvarwere vane maitiro akaenzana emashure e-posterior cruciate ligament, ane hunyoro hunyoro hyperplasia, uye kuderera kwakanyanya kwekubatana.PS prostheses inogona kushandiswa zvakanyanya mune akawanda ekutanga mabvi ekutsiva, kusanganisira varwere vane yakanyanya hyperplasia uye kuremara.Mune varwere vane osteoporosis yakaoma kana kukanganisa kwemapfupa, intramedullary kureba tsvimbo inogona kudiwa, uye collateral ligament dysfunction inogona kudiwa.Shandisa zvinorambidza spacers.
2. Fixed papuratifomu uye inofambiswa papuratifomu prosthesis
The artificialmabvi akabatanidzwa prosthesisinogona kukamurwa kuita yakagadzika chikuva uye chinofambiswa chikuva maererano nekubatanidza nzira ye polyethylene gasket uye simbi tibial tray.Fixed platform prosthesis inhengo ye polyethylene yakagadziriswa kune tibial plateau nekuvhara michina.Iyo polyethylene chikamu cheinofambiswa papuratifomu prosthesis inogona kufamba pane tibial plateau.Pamusoro pekugadzira mubatanidzwa unofambiswa neiyo femoral prosthesis, iyo polyethylene spacer inobvumirawo imwe nhanho yekufamba pakati petibial plateau uye tibial plateau.
Iyo yakagadziriswa platform prosthesis gasket yakavharwa pasimbi yesimbi, iyo yakasimba uye yakavimbika, uye inoshandiswa zvakanyanya.Iwo ma geometrie ekugadzirisa spacers anogona kusiyanisa zvakanyanya kubva kumugadziri kuenda kune mugadziri kuti aenderane neakasarudzika echikadzi prosthesis uye kugadzirisa inodiwa kinematics.Inogona zvakare kushandurwa nyore nyore kuita inorambidza shim kana ichidikanwa.
Nguva yekutumira: Sep-10-2022
