| 摘要 |
The invention relates to an implantation assembly (1) comprising a bone- anchoring element (2) having a threaded rod, which is provided at one of its ends with a head, and a drive instrument (3) for the bone-anchoring element (2), said instrument having a drive shaft (8) pre-fitted removably on the bone-anchoring element (2). The threaded rod comprises at least one radial slot (44) communicating with an axial bore (42), and a channel communicating with the axial bore passes longitudinally through the drive shaft. |
