| 摘要 |
An instrument for measuring the distance between bone parts in a knee joint, particularly the distance between both femoral condyles (A', A'') at the knee end of the femur (A), the instrument including a first element (3, 4, 12) with a first abutment surface (5), which is intended to be brought into engagement against one bone part (A'), and a second element (7, 9), which is displaceably mounted in the first element and at one end is provided with a second abutment surface (2) intended for being brought into engagement against the second bone part (A'', C) there also being a scale (10) with an index for indicating the displacement of the second element in relation to the first element. The first element includes a tube (3, 4) bent at substantially a right angle, with the first abutment surface (5) situated on the outside of the bend. The second element (7, 9) is flexible (at 7), and inserted in the tube for displacement therein, so that the second abutment surface (2) projects out from the tube, the second element being provided at a distance from its first end with either the scale (10) or index, which can be read against the index or the scale of the first element. |
