| 摘要 |
Knee-joint prosthesis for permanent anchoring in the bone tissue of a knee-joint in the human body, consisting of a femur part, which comprises an articulation element (8) with a convex joint surface (20), an elongate intermediate element (7) with a first side, intended to bear against a surface of the bone tissue, and a second, opposite side intended to bear against an inner surface of the articulation element, which is arranged securely on the intermediate element by means of a positive locking. An anchoring element intended to be introduced into a recessed channel in the bone tissue and to be connected to this for anchoring the intermediate element and, thus, also the articulation element in the femur. The positive locking for securing the articulation element (8) for the femur on the intermediate element (7) in the femur part (3) is formed by means of the intermediate element being designed as a fixation rail with flanges (13) arranged on the second side of the intermediate element and by means of the rear surface of the articulation element for the femur being provided with an elongate fixation member (26) extending along this surface. This member is designed to be introduced into the said fixation rail and locked in the latter in a predetermined locking position by means of locking members (29). |
