Polyaxial Pedicle Screwzvakachinja nzvimbo yekuvhiya musana, zvichigonesa vanachiremba kuchinjika uye kugadzikana zvakanyanya panguva yekuita maoparesheni ekugadzirisa musana. Midziyo iyi mitsva yakagadzirirwa kugamuchira makona akasiyana-siyana ekuisa sikuruu, zvichipa kuchinjika kukuru pakurongeka kwemusana nekugadzirisa.
Chinhu chikuru chakanakiramasikuruu etitanium pedicle spineiri mukugadzirwa kwayo kwakasiyana-siyana kwebhora nesoketi. Izvi zvinobvumira sikuruu kutenderera mukati metsvimbo, zvichibvumira chiremba kugadzirisa kona yayo mushure mekuisirwa. Kuchinjika uku kunonyanya kukosha pakurapa kuremara kwemusana kwakaoma, uko kuiswa kwakanyatsorongeka kwakakosha pakurapa kunobudirira. Nekuda kwemasikuruu epolyaxial anobvumira kugadziriswa mushure mekuiswa, anobatsira kuderedza njodzi yezvinetso zvine chekuita nekusarongeka zvakanaka.
Pamusoro pekugona kuchinjika zvakanaka,sikuruu yepediclezvakare inopa kugadzikana kwakanyanya kupfuura masikuruu ekare e monoaxial. Kugona uku kukiya sikuruu munzira dzakasiyana-siyana kunowedzera kuomarara kwechimiro chose, izvo zvakakosha pakuchengetedza kugadzikana kwemusana panguva yekupora. Izvi zvinonyanya kukosha panguva yekuvhiyiwa kwe spinal fusion, uko chinangwa chiri chekusimudzira kukura kwemapfupa uye kuwana kubatana kwakachengeteka pakati pemapfupa emusana.
Dhayamita yesisitimu yeskuruu yemusanazvinoenderana nekushandiswa kwacho uye zvinodiwa nemuviri wemurwere. Kazhinji, izvisikuruu yemusanadhayamita yacho inosiyana kubva pa4.0 mm kusvika 7.0 mm. Kusarudza dhayamita kwakakosha, sezvo kuchikanganisa simba rekudhonza sikuruu, kugadzikana kwayo, uye hunhu hwese hwe biomechanical.Musana wePedicle screwine dhayamita hombe inowanzopa simba guru uye kugadzikana, zvichiita kuti ikwane varwere vane mapfupa akawandisa kana avo vanoda kugadziriswa kwakachengeteka.
Nguva yekutumira: Gumiguru-21-2025