| 摘要 |
A cage plate for spinal fusion includes a cage made of a biologically inert material such as titanium, the cage being sufficiently porous to facilitate bony ingrowth and spinal fusion, and a plate to which the cage is attached, the plate being made of a biologically inert material such as titanium. In the preferred embodiment, the plate is generally rectangular and has a longitudinal axis that in use is disposed parallel with the longitudinal axis of the spinal column, the plate being curved when viewed from the end, the curvature approximating that of the vertebral bodies to be fused, and the plate being curved when viewed from the side, the curvature approximating that of the vertebral bodies to be fused. The plate includes a plurality of openings adjacent its corners. In use, an opening is formed in the spinal column of approximately the same size and shape as the cage. The cage is inserted into the opening. In addition, several small openings are formed in the vertebral bodies. Bone screws are inserted through the openings in the plate and into the small openings in the vertebral bodies. The plate and the cage thus are secured to the vertebral bodies and the vertebral bodies are immobilized.
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