Oku kusetyenziswa ukuxilonga i-PCL izinyembezi
Uvavanyo oluphezulu lweedraki ngumsebenzi othile owenziwe ukuvavanya ukuzinza kokubambisana, ingakumbi idolo elihlangeneyo. Ivavanya ngokukodwa umsebenzi we-posterior cruciate ligament (PCL). Isiphumo esihle sibonakala xa kukho ukulimala kwi-PCL, njenge- PCL izinyembezi .
Uvavanyo lwe-drawer yangasemva luyingxenye yoviwo oluqhelekileyo lwamadolo . Xa ugqirha wakho ehlola idolo, uya kuhlola idibeneyo, azivelele ngokungaqhelekanga, uvavanye iigaments kunye nokuhamba, unqume ukuba kukho ukuvuvukala , kwaye wenze iimpawu ezizodwa zokubona ukungaqhelekanga.
Ukuba ugqirha ugxeka inyembezi yePCL, ukuvavanywa kwetraki ephezulu emva kokuhlolwa kweedrafti kuyona vavanyo oluhle kakhulu ukuyixilonga. Uvavanyo lubeka uxinzelelo kwi-PCL. Iingxowa nge-PCL eyonakalisiweyo ingaba neenguqulelo ezininzi kunye nokuphelisa okungapheliyo kule mvavanyo.
Uvavanyo lwe-Drawer Drawer oluphambili lwenziwa njani
Ngomguli olele phantsi kwaye ekhululekile, umhloli uguqa ngamadolo kwinqanaba elifanelekileyo (90 degrees). Umhloli ubeka iminwe yakhe emadolweni kunye nokuzama ukutshintsha i-back tibia. Njengoko umhloli ebeka uxinzelelo kwi-top shin bone, unokuziva unyanzeliso oluvela kwi-PCL. Kwizigulane ezine-PCL eyingozi, umhloli angayiqaphela ukuguqulela okugqithisileyo (intshukumo) ye-tibia ngasemva, kwaye akanakuvakalelwa ukuxhatshazwa kwe-ligament.
Bobabini inani lokunyakaza (ukutshintsha) kwethambo lesifuba, kunye nokuvakalelwa kokuphela kokuhamba (indlela eqinileyo i-ligament evakalelwa ngayo), nikela ulwazi malunga ne-PCL.
Iibhenqo nge-PCL ewonakalisiweyo zingabonisa ukunyakaza okuthe xaxa kwaye ukuphela kokuhamba kuya kuziva kungekho.
Izinyembezi zePCL
Inyembezi ye-PCL yingozi engavamile ebonakalayo ngenxa yokuwa ngqo kwidolo eguquguqukayo. Esi senzakalo sinokuthi senzeke kwi-passenger front seat kwisithuthi esabandakanyeka ekubambisaneni.
Kule meko, i-shin iqhutyelwa ngempembelelo ngokuqhagamshelana nedeshibhodi.
Abantu abagcina i-PCL izinyembezi banokuvalelwa kokungazinzi kwamadolo . Ngokuqhelekileyo, iinyembezi ze-PCL zenzeke ngokubambisana nezinye ukulimala kwegamento emadolweni. Unyango lwama-PCL alunxwemeni luninzi luyenziwa ngonyango olungapheliyo, nangona utyando lunokuba luyimfuneko kwimeko yabadlali abaphezulu abafuna imfuno. Lapho iinyembezi ze-PCL zidibene nezinye ukulimala kwegilament, utyando luqhutshwa ngokuphindaphindiweyo ukubuyisela ukuzinza kwixolo.
Ukuba inqabileyo ye-PCL ikhunjulwa, ngokuqhelekileyo i-MRI yenziwa ukuze kuqinisekiswe ukuba kukho ukulimala. Nangona kunjalo, ubunzima bengozi bubekwe ngokugqithiseleyo ngumhloli ukuba abone indlela engaqinisekanga ngayo umdibaniso ngenxa yengozi. Iinyembezi ze-PCL zidibeneyo ukuya kwi-1 ukuya kwe-3. Ukulimala kweBakala 1 kaninzi kunemiqondiso encinci kwaye isilumkiso esihle kakhulu. Ukulimala kweBakala 3 kubangela ezinye iingxaki kwaye mhlawumbi kufuna unyango olongezelelekileyo.
> Umthombo:
> Vaquero-Picado A, RodrÃguez-Merchán EC. Ndisombulula iinyembezi eziphambili zengxowanxu: ukuhlaziywa kolawulo. UKUHLOLA Iingxelo ezivulekileyo . 2017; 2 (4): 89-96. i-doi: 10.1302 / 2058-5241.2.160009.