Tekinoroji yekurovera mapfupa mukati memudumbu inzira inoshandiswa zvakanyanya mukugadzirisa mapfupa. Nhoroondo yayo inogona kuteverwa kusvika kuma1940. Inoshandiswa zvakanyanya mukurapa mapfupa akatyoka kwenguva refu, asina kubatana, nezvimwewo, nekuisa chipikiri chemukati memudumbu pakati pemudumbu. Gadzirisa nzvimbo yakatyoka. Munyaya idzi, tichakuzivisai nezvenyaya dzakakodzera dzine chekuita nembambo dzemukati memudumbu.
Zvichitaurwa zviri nyore, nzara yemukati memudullary chimiro chakareba chine maburi akawanda anokiya pamativi ese maviri kuti agadzire magumo epamberi neapadivi ekutyoka. Zvichienderana nemaumbirwo akasiyana, anogona kukamurwa kuita zvikamu zvakasimba, zvechubhu, zvakavhurika, nezvimwewo, zvakakodzera varwere vakasiyana. Semuenzaniso, nzara dzakasimba dzemukati memudullary dzinodzivirira hutachiona nekuti hadzina nzvimbo yakafa mukati. Kugona kuri nani.
Tichitora muenzaniso wetibia, dhayamita ye medullary cavity inosiyana zvikuru muvarwere vakasiyana. Zvichienderana nekuti kudzorwa kwembambo kunodii, nzara dzemukati memedullary dzinogona kukamurwa kuita kudzorwa kwembambo dzakagadziriswa uye dzisina kudzorwa. Musiyano uri pakuti kudzorwa kwembambo kunofanira kushandiswa here pakudzorwa kwembambo, kusanganisira zvishandiso zvemaoko kana zvemagetsi, nezvimwewo, uye mabhora makuru anotevedzana anoshandiswa kukudza medullary cavity kuti ikwane nzara dzemukati memedullary dzakakura.
Zvisinei, maitiro ekuwedzera marrow anokuvadza endosteum, sezvakaratidzwa mumufananidzo, uye anokanganisa chikamu cheropa rinobuda mumapfupa, izvo zvinogona kukonzera kuvharwa kwemapfupa emunharaunda kwenguva pfupi uye kuwedzera njodzi yekutapukirwa. Zvisinei, zvine chekuita neizvi Zvidzidzo zvekiriniki zvinoramba kuti pane musiyano wakakosha. Kunewo maonero anosimbisa kukosha kwekugadzirisa maronda. Kune rumwe rutivi, nzara dzemukati memedullary dzine dhayamita yakakura dzinogona kushandiswa kugadzira maronda. Simba uye kugara kwenguva refu zvinowedzera nekuwedzera kwedhayamita, uye nzvimbo yekubata nemedullary cavity inowedzera. Panewo maonero ekuti mapfupa madiki anogadzirwa panguva yekuwedzera marrow anoitawo basa rakati mukuisa mapfupa e autologous.
Pfungwa huru inotsigira nzira iyi yekusabvisa tsvina ndeyekuti inogona kuderedza njodzi yehutachiona uye embolism yemapapu, asi chisingafaniri kufuratirwa ndechekuti dhayamita yayo yakatetepa inounza hunhu husina kusimba hwemakanika, zvichikonzera kukurumidza kuvhiyiwa. Parizvino, nzara zhinji dzemukati metibial dzinowanzo shandisa nzara dzakakura dzemukati metibullary, asi zvakanakira nezvakaipira zvichiri kuda kuyerwa zvichienderana nehukuru hwemukati metibullary yemurwere uye mamiriro ekutyoka. Chinodiwa chereamer ndechekuderedza kukweshana panguva yekucheka uye kuva neflute yakadzika uye shaft diki yedhayamita, nokudaro kuderedza kumanikidzwa mumukati metibullary uye kudzivirira kupisa kwakanyanya kwemapfupa nenyama dzakapfava zvinokonzerwa nekukweshana. Necrosis.
Kana nzara yemukati memedullary yaiswa, kugadzika sikuruu kunodiwa. Kugadzika sikuruu kwetsika kunonzi static locking, uye vamwe vanhu vanotenda kuti kunogona kukonzera kunonoka kupora. Sekuvandudza, mamwe maburi esikuruu anokiyiwa akagadzirwa kuita chimiro cheoval, chinonzi dynamic locking.
Zviri pamusoro apa inyaya yezvikamu zve intramedullary nails. Muchinyorwa chinotevera, tichagovana nemi maitiro mapfupi ekuvhiyiwa kwe intramedullary nails.
Nguva yekutumira: Gunyana-16-2023
