Floating bearing knee joint prosthesis with a fixed tibial post

Prosthesis (10) hinged knee to replace the portion of the knee joint of a femur (14) and a tibia (12), said knee prosthesis comprising: a first component (16) femoral having at least a first surface (26) of femoral support; and an element (20) support having a first surface (59, 60) support serving to articulate with said first surface (26) of femoral support and a second surface (58) of support which serves to articulate with said at least one surface (56) of the tibial bearing; characterized by a plurality of axles (64, 110, 124) detachable guide, each of said guide shafts removable serves for coupling removably to said component (18) tibial and connected by an element (40) coupling said component ( 16) femoral, wherein changing one of said shafts (64, 110, 124) removable guide on the other dedichos axes (64, 110, 124) removable guide, the limitation exhibited by the prosthesis femoral knee is changed.