| 摘要 |
The invention concerns a spinal osteosynthesis system comprising a rod, a vertebral member including two branches capable of receiving the rod between them, a collar for preventing the branches from being spaced, and a lock for clamping the rod, the lock being freely rotatable on the collar. Either one of the collar or the lock is capable of receiving the other of the flange or the lock for mounting the lock on the collar. |
