| 摘要 |
The implant consists of a ring (11a,11b,11c) with a cavity (12a,12b,12c) to receive a spinal apophysis, and a lateral slot (14a,14b,14c) for engaging the apophysis with the cavity. The cavity has an arrowhead cross-section, corresponding to the shape of the apophysis, and passages in the sides for a support (20) linking a number of vertebrae and limiting intervertebral flexure. The support can be supple or rigid, and the ring can have lugs for pedicle fixing screws.
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