1. E ai ki te mea kei te tiakina te hononga hope o te uaua
E ai ki te tiakitanga o te hononga hope o te turi, ka taea te wehewehe i te whakakapinga turi horihori tuatahi ki te whakakapinga hononga hope (Posterior Stabilized, PS) me te pupuri hononga hope (Cruiate Retention, CR). I ngā tau tata nei, kua hangaia te papa tibial o ēnei momo prosthesis e rua me ngā taumata rerekē o te ōritetanga me te whānui o te pou pokapū e ai ki te pumau o te hononga, te mahi a te hononga me te ariā o te taote pokanga, kia pai ake ai te pumau o te hononga me te whakapai ake i te mahi kinematic.
(1) Ngā āhuatanga o ngā prosthesis CR me PS:
Ka tiakina e te prosthesis CR te hononga hope o te uauahononga turiā, ka whakaiti i te maha o ngā mahi pokanga; ka ārai i te tango atu i te hononga o te femur, ā, ka tiakina te papatipu wheua; i roto i te ariā, ka taea e ia te whakanui ake i te pumau o te piko, te whakaiti i te nekehanga o mua, me te whakatutuki i te hurihuri whakamuri. Ka āwhina ki te tiaki i te proprioception.
Ka whakamahia e te prosthesis PS he hanganga pou-kame hei whakakapi i te mahi a te ripeka o muri i roto i te hoahoa, kia taea ai te huri whakamuri i te prosthesis femur i te wā e piko ana. I te wā e mahi ana, ko tehononga-waewae o te femurme tango te wheua wheua. Nā te tangohanga o te hononga hope o te wheua, ka nui ake te āputa piko, ka māmā ake te nekehanga o muri, ā, ka māmā ake, ka māmā ake hoki te taurite o te hononga.
(2) Ngā tohu whanaunga mō ngā prosthesis CR me PS:
Ko te nuinga o ngā tūroro e whiwhi ana i te pokanga turi katoa tuatahi ka taea te whakamahi i te prosthesis CR, i te prosthesis PS rānei, ā, ko te whiriwhiri i te prosthesis e whakawhirinaki ana ki te āhua o te tūroro me te wheako o te tākuta. Heoi, he pai ake te prosthesis CR mō ngā tūroro he pai te mahi o te hononga hope o te hononga, he ngawari te hyperplasia hononga, ā, he iti ake te kino o te hononga. Ka taea te whakamahi whānui i ngā prosthesis PS i roto i te nuinga o ngā whakakapinga turi katoa tuatahi, tae atu ki ngā tūroro he nui te hyperplasia me te deformity. Mō ngā tūroro he osteoporosis kino, he hapa wheua rānei, ka hiahiatia pea he tokotoko whakaroa intramedullary, ā, ka hiahiatia pea he mahi kino o te hononga collateral. Whakamahia ngā mokowā whakawhāiti.
2. Pūhara pumau me te pūhara nekeneke
Ko te mea hangaihononga turiKa taea te wehewehe ki te tūāpapa pumau me te tūāpapa nekeneke e ai ki te tikanga hononga o te polyethylene gasket me te tibia tibial tirei whakarewa. Ko te tūāpapa pumau he wāhanga polyethylene e piri ana ki te tibia tibial plateau mā te tikanga raka. Ka taea e te wāhanga polyethylene o te tūāpapa nekeneke te neke i runga i te tibia tibial plateau. Haunga te hanga hononga nekeneke me te femoral prosthesis, ka taea hoki e te polyethylene spacer te neke i waenga i te tibia tibial plateau me te tibia tibial plateau.
Kua mau te takai pūmau o te tūāpapa whakapūmau ki runga i te whāriki whakarewa, he mea pakari, he mea pono hoki, ā, he whānui ake te whakamahinga. Tērā pea ka rerekē ngā āhua o ngā whakawātea pūmau i ia kaihanga, i ia kaihanga, kia ōrite ai ki tā rātou pūmau femur ahurei, kia pai ake ai te kinematics e hiahiatia ana. Ka taea hoki te whakarerekē ngāwari ki tētahi hiri here mēnā e hiahiatia ana.
Wā tuku: Hepetema-10-2022
