Abstract: A device for setting a total knee prosthesis includes: a tensioning component (1) having: a tibial plate (2), a slide (5) mobile along a rail (3) and elements (6, 11) for being fixed to an ancillary component including a centro-medullar rod and a tibial plate and capable of receiving variable-width wedging elements; and a motoring elements (8, 10) for tensioning the knee when the plate is applied on a tibial section and the ancillary component (20) secured to the slide, a perforating guide capable of being mounted on the rail (3) and having drilling holes; the guide capable of including or of being associated with a member for palpation of the anterior part of the femur; and locating elements (EF) for determining the interarticular space available in flexure, thereby enabling the distal femoral section plane or the posterior section plane to be accurately determined.

Abstract: A knee prosthesis femoral implant includes two condyles integral with a throchlea and a centro-medullary block adapted to be fixed on a support base arranged between the condyles. The implant includes a wedge linking the base and the block. There is appropriate angular positioning of the wedge and the block both in a valgus front plane and in a sagittal plane relative to the reference front plane. The wedge has flat proximal and distal faces forming between them a predetermined angle (&bgr;) which, combined with an angle of inclination (&agr;) at the base surface receiving the wedge, enables, depending on the orientation of the wedge, two different femoral valgus values for each wedge. The wedge can also have different profiles in the sagittal plane. The invention enables a wide range of possibilities for adjusting the femoral valgus and for positioning the wedge in an antero-posterior plane relative to a reference plane, with a reduced number of wedges.