isibhengezo

Sethula indlela eqondile yokufaka izikulufu ze-distal tibiofibular: indlela ye-engeli bisector

"I-10% ye-ankle fractures ihambisana nokulimala kwe-distal tibiofibular syndesmosis. Ucwaningo luye lwabonisa ukuthi i-52% yezikulufi ze-distal tibiofibular ziholela ekunciphiseni okubi kwe-syndesmosis. Ukufaka i-distal tibiofibular screw perpendicular ebusweni be-syndesmosis ehlangene kubalulekile ukuze ugweme i-screw ye-iatrogenic enconyiwe ukuze ifake i-screw ye-iatrogenic yokufaka i-screw ye-distal. 2 cm noma 3.5 cm ngaphezu kwe-distal tibial articular surface, nge-engeli engu-20-30 ° ukuya endizeni evundlile, kusukela ku-fibula kuya ku-tibia, iqakala lisesimweni sokungathathi hlangothi."

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Ukufakwa mathupha kwezikulufu ze-distal tibiofibular ngokuvamile kubangela ukuchezuka endaweni yokungena nendlela, futhi okwamanje, ayikho indlela enembile yokunquma isiqondiso sokufakwa kwalezi zikulufu. Ukuze kubhekwane nalolu daba, abacwaningi bakwamanye amazwe basebenzise indlela entsha—'indlela ye-angle bisector.

Ukusebenzisa idatha ye-imaging evela ku-16 evamile ye-ankle ehlangene, amamodeli angu-16 aphrintiwe we-3D adalwe. Ebangeni le-2 cm no-3.5 cm ngaphezu kwendawo ye-tibial articular, izintambo ezimbili ze-Kirschner ezimbili ze-1.6 mm ezihambisana nendawo ehlangene zibekwe eduze nemiphetho yangaphambili nangemuva ye-tibia ne-fibula, ngokulandelana. I-engeli ephakathi kwezintambo ezimbili ze-Kirschner ikalwe kusetshenziswa i-protractor, futhi i-drill bit engu-2.7 mm yasetshenziselwa ukubhoboza imbobo ngomugqa ohlukanisa i-engeli, kulandele ukufakwa kwesikulufu esingu-3.5 mm. Ngemva kokufaka isikulufu, isikulufu sasinqanyulwa ngobude baso kusetshenziswa isaha ukuze kuhlolwe ubudlelwano phakathi kokuqondisa kwesikulufu ne-eksisi emaphakathi ye-tibia ne-fibula.

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Ukuhlolwa kwe-specimen kubonisa ukuthi kunokuvumelana okuhle phakathi kwe-axis emaphakathi ye-tibia ne-fibula kanye nomugqa ohlukanisa i-engeli, kanye naphakathi kwe-eksisi emaphakathi nendawo yesikulufu.

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ngokwengqondo, le ndlela ingabeka ngempumelelo isikulufu eduze kwe-axis emaphakathi ye-tibia ne-fibula. Kodwa-ke, ngesikhathi sokuhlinzwa, ukubeka izintambo ze-Kirschner eduze nemiphetho yangaphambili nangemuva ye-tibia ne-fibula kubangela ingozi yokulimaza imithambo yegazi nezinzwa. Ukwengeza, le ndlela ayixazululi inkinga ye-iatrogenic malreduction, njengoba ukuqondanisa kwe-distal tibiofibular akukwazi ukuhlolwa ngokwanele ngokuhlinzwa ngaphambi kokubeka isikulufu.


Isikhathi sokuthumela: Jul-30-2024