1. Hakurikijwe niba umugozi wo ku ruhu rw'inyuma ugumaho
Dukurikije niba umugozi w’inyuma w’ivi ugumaho, urwego rw’ibanze rw’ivi ry’ubukorano rushobora kugabanywamo ibice bibiri: gusimbuza umugozi w’inyuma w’ivi (Posterior Stabilized, PS) n’ugukomeza umugozi w’inyuma w’ivi (Cruiate Retention, CR). Mu myaka ya vuba aha, urwego rw’inyuma rw’ubu bwoko bubiri bw’ivurugu rwakozwe mu buryo butandukanye bwo guhuza n’ubugari bw’inkingi yo hagati hakurikijwe uburyo ingingo ihagaze, imikorere y’umugozi n’igitekerezo cy’umuganga ubaga, kugira ngo hongerwe uburyo ingingo ihagaze neza kandi hongerwe uburyo kinematic ikora neza.
(1) Ibiranga CR na PS protheses:
Insimburangingo ya CR irinda umugozi wo inyuma w'inyuma w'inyumaingingo y'ivikandi bigabanya umubare w'intambwe zo kubaga; birinda kongera gucibwa kwa femoral condyle kandi bigakomeza ubunini bw'amagufwa; mu buryo bw'imitekerereze, bishobora kongera ubushobozi bwo guhindagurika, kugabanya kwimuka imbere, no kugera ku kuzunguruka inyuma. Bifasha kubungabunga uburyo bwo kumenya ibintu.
Insimburangingo ya PS ikoresha imiterere ya kamera n'inkingi kugira ngo isimbure imikorere y'umusaraba w'inyuma mu gishushanyo, kugira ngo insimburangingo y'inyuma y'inyuma ibashe gusubizwa inyuma mu gihe cyo guhindukira. Mu gihe cyo kubaga, insimburangingointercondylar y'abagoreHakenewe gukorerwa osteotomy. Bitewe no gukuraho umugozi w'inyuma, icyuho cyo gucikamo ni kinini, inzira y'inyuma yoroshye, kandi uburyo imigozi ihagaze bworoshye kandi buroroshye.
(2) Ibimenyetso bifatika bya CR na PS protheses:
Abarwayi benshi bakora isuzuma ry’ibanze ry’ivi bashobora gukoresha CR prosthesis cyangwa PS prosthesis, kandi guhitamo CR prosthesis biterwa ahanini n’uko umurwayi ameze n’uburambe bwa muganga. Ariko, CR prosthesis ikwiriye cyane abarwayi bafite imikorere isanzwe y’imitsi yo mu gice cy’inyuma, hyperplasia yoroheje y’ingingo, n’ubumuga budakabije bw’ingingo. PS prostheses zishobora gukoreshwa cyane mu buryo bwinshi bwo gusimbuza ivi ry’ibanze, harimo n’abarwayi bafite hyperplasia ikomeye n’ubumuga. Ku barwayi bafite indwara ikomeye ya osteoporosis cyangwa ubusembwa bw’amagufwa, inkoni zo kurenza intramedullary zishobora kuba ngombwa, kandi imitsi yo mu gice cy’inyuma ishobora kuba idafite ubushobozi bwo gukora neza. Koresha ibyuma bigabanya ubukana.
2. Urusobe rw'insinga rudahinduka n'urusobe rw'insinga rwimukanwa
Ubukoranoicyuma gishushanya ingingo z'iviIshobora kugabanywamo urubuga rudahinduka n'urubuga rwimukanwa hakurikijwe uburyo bwo guhuza gasket ya polyethylene n'agasanduku k'icyuma ka tibial. Agasanduku gadahinduka ni igice cya polyethylene gifatanye n'agasanduku k'igiti hakoreshejwe uburyo bwo gufunga. Igice cya polyethylene cy'agasanduku gadahinduka gishobora kugenda ku gasanduku k'igiti. Uretse gukora agasanduku gadahinduka hamwe n'agasanduku k'igiti, agasanduku ka polyethylene gatuma habaho urujya n'uruza runaka hagati y'agasanduku k'igiti na tibial.
Agakoresho k’insinga gafite imiterere ihamye gafungiwe ku gipfunyika cy’icyuma, gakomeye kandi kizewe, kandi gakoreshwa cyane. Imiterere y’ibice by’insinga bishobora gutandukana cyane bitewe n’uruganda rukora kugira ngo bihuze n’insinga zihariye z’insinga kandi binoze imiterere y’insinga zikenewe. Bishobora kandi guhindurwa byoroshye mu buryo bworoshye mu gihe bibaye ngombwa.
Igihe cyo kohereza ubutumwa: 10 Nzeri 2022
