| 摘要 |
An implant (1) which can be cooperate with an installation tool (24) and a spacer member (25, 26) and which is arranged with an internal recess which extends from the upper parts of the implant and opens upward, the recess being arranged with first tracks (5) and/or ridges which, seen in cross section of the recess, extend outward from the main periphery (3) of the recess, in which first surfaces (5a) of said first tracks (5) and/or ridges can cooperate with corresponding (opposite) second surfaces (8a) on second ridges (8) and/or tracks arranged on the tightening member (24). |
