Te take o te whiriwhiri i te matotoru o ngā whao intramedullary mō ngā wheua ngongo roa o ngā peka o raro.

Ko te whakakōkī intramedullary te paerewa koura mō te maimoatanga pokanga o ngā whati diaphyseal o ngā wheua ngongo roa i ngā peka o raro. He painga ōna pēnei i te iti o te whara pokanga me te kaha biomechanical teitei, nā reira i tino whakamahia ai i roto i ngā whati tibial, femoral, me te humeral. I roto i te haumanu, ko te kōwhiringa o te diameter whao intramedullary he pai ake te whao matotoru rawa ka taea te whakauru me te reaming taurite, kia pai ake ai te pumau. Heoi, kāore anō kia tino whakatauhia mēnā he pānga tika te matotoru o te whao intramedullary ki te matapae whati.

I roto i tētahi tuhinga o mua, i kōrerohia e mātou tētahi rangahau e tirotiro ana i te pānga o te whānui o te whao intramedullary ki te whakaora wheua i roto i ngā tūroro neke atu i te 50 tau te pakeke me ngā whati intertrochanteric. Kāore i whakaatuhia e ngā hua he rerekētanga tatauranga i roto i ngā tere whakaora whati me ngā tere tāpui anō i waenga i te rōpū 10mm me te rōpū he matotoru ake ngā whao i te 10mm.

I tae atu hoki tētahi tuhinga i whakaputaina i te tau 2022 e ngā tohunga o te Porowini o Taiwan ki tētahi whakatau ōrite:

I roto i tētahi rangahau i uru atu ai ngā tūroro e 257, i whakapirihia ki ngā whao intramedullary he 10mm, 11mm, 12mm, me te 13mm te whānui, i wehea ngā tūroro kia whā ngā rōpū i runga i te whānui o te whao. I kitea kāore he rerekētanga tatauranga i roto i ngā reiti whakaora whati i waenga i ngā rōpū e whā.

Nō reira, he rite anō hoki tēnei ki ngā whati ngāwari o te kakau tibial?

I roto i tētahi rangahau ā-wāhanga-whakahaere i uru atu ai te 60 tūroro, i wehea ōritetia e ngā kairangahau ngā tūroro 60 kia rua ngā rōpū, 30 ia rōpū. I whakapirihia te Rōpū A ki ngā whao angiangi o roto i te wheua (9mm mō ngā wāhine, 10mm mō ngā tāne), ko te Rōpū B i whakapirihia ki ngā whao matotoru o roto i te wheua (11mm mō ngā wāhine, 12mm mō ngā tāne):

I whakaatuhia e ngā hua kāore he rerekētanga nui i roto i ngā putanga haumanu, i te whakaahua rānei i waenga i ngā whao angiangi me ngā whao matotoru o roto i te wheua. Hei tāpiri, ko ngā whao angiangi o roto i te wheua he poto ake te wā pokanga me te wā tirotiro i te fluoroscopy. Ahakoa he whao matotoru, he whao angiangi rānei te whānui i whakamahia, i mahia te reaming ngawari i mua i te whakaurunga o te whao. E kī ana ngā kaituhi mō ngā whati ngāwari o te tibial shaft, ka taea te whakamahi i ngā whao angiangi o roto i te wheua hei whakapiri.