Ufakelo lwe-X4 edolweni lusetyenziselwa ukuphelisa izikhalazo zesigulana malunga namalungu amadolo angasebenziyo okanye ngokwemilinganiselo, ngaphandle kwezigulana ezinomgangatho wobomi obuhlayo obubangelwa ziintlungu ezinxulumene ne-arthrosis.Iiprostheses ezidibeneyo zedolo ziquka ezi nxalenye zilandelayo;amacandelo femoral, ufakelo, amacandelo tibial, iziqu, izikhonkwane, amandongomane, amacandelo patellar.