I-External Fixator System sisixhobo sonyango esisetyenziselwa ukuzinzisa kunye nokunyanzeliswa kwamathambo kwiimeko zokuphuka, ukukhubazeka kwamathambo, okanye ukwakhiwa kwamathambo. Iqulathe izikhonkwane, izikrufu, iintonga kunye neeclamps ezidityaniswe ngaphandle emzimbeni kwaye ziqhagamshelwe kwithambo ngesikhumba kunye nezicubu ezithambileyo.
Le nkqubo ibonelela ngolungiso olungqongqo ngaphandle kokufuna ukufakelwa kwangaphakathi, okwenza ukuba ibe luncedo ngakumbi kwiifractures ezintsonkothileyo, iimeko ezinokosuleleka, kunye neenkqubo zokwandisa amalungu.