Abstract: Method for selecting one or several knee prosthesis elements, by acquiring spatial data concerning spacing and tensioned femorotibial position, including the corresponding HKA angle, for at least three angular positions, of 20°, of 0°, and of the order of 90° in flexion, processing the data thus obtained to verify whether the HKA angles are substantially equal and included within the tolerable limits, and processing the data, in particular those corresponding to extension and flexion of 90° to determine the dimensions and/or positions of the implant.

Abstract: The device includes at least one femoral insert (8A) with a condyle support surface (20A), for a bone or femoral implant, at least one tibial insert (10A), with a tibial plateau support surface (24A), for a bone or a tibial implant and force introduction element (4A, 30A), for application between the femoral insert and the tibial insert of a distraction force of a given intensity with the knee cap in place or not. The condyle support surface (20A) is dished in form and is provided with a sliding element (12A) for the bone or femoral implant when the knee joint is moved.

Abstract: The invention concerns a method for selecting one or several knee prosthesis elements, characterized in that it consists in acquiring spatial data concerning spacing and tensioned femorotibial position, including the corresponding HKA angle, for at least three angular positions, of 20°, of 0°, and of the order of 90° in flexion, in processing the data thus obtained to verify whether the HKA angles are substantially equal and included within the tolerable limits, and in processing said data, in particular those corresponding to extension and flexion of 90° to determine the dimensions and/or positions of the implant.