| 摘要 |
This invention is a spine fixation instrumentation including a rod (11) and lateral mass screws (12, 15) which can be fixed at any of a range of orientations relative to the rod. Connectors (22, 25) are used to couple the rod (11) to the screws (12, 15). Sleeves (32, 35, 36, 37) are wedged between yokes (16, 26) and the rod (11) or shafts (27) on the other hand. The sleeves (32, 35, 36, 37) are assembled and disassembled by instruments (50, 80) similar to pliers.
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