| 摘要 |
<p>The invention relates to a hip joint prosthesis for permanent anchoring in the human hip joint comprising an attachment part for a ball unit designed to be anchored in the neck of a human femur (collum femoris), said attachment part comprising an elongate anchoring element or primary fixture (1) intended to be inserted into a channel (17) bored and extending through the femoral collum and a secondary fixture (2) for carrying a ball or caput (31) intended to be attached to the collum after removal of the head of the collum, said primary fixture (1) and said secondary fixture (2) being provided with means (11) for connecting said fixtures to each other. According to the invention the joint is designed thus that the length of said primary fixture (10) is chosen such that said primary fixture ends close to the head of the collum, and in that said secondary fixture (2) comprises a plug-like part intended to be inserted in a cylindrical countersunk recess (22) cut into the cancellous bone of the collum and extending to the cortical bone in at least three locations, the size of the secondary fixture (2) being chosen such that the fixture (2) abuts the cortical bone of the collum in at least said three locations.</p> |
