| 摘要 |
Devices such as a cylindrical bone dowel removed from a vertebra or other human or animal bone, alive or deceased are used to fill holes formed through a vertebral body. Synthetic nucleus replacements or biologic tissue and/or cells may be inserted through the hole. Single or multiple solid, gel, or liquid devices may be placed into the disc. The material may cure in-situ. The intradiscal device may be inserted an instrument that contains a hollow tube. A hollow tube, including the hollow tube of an insertion tool, may be placed into the hole drilled into the vertebra. Cannulated drill bits may placed over guide wires to drill the hole into the vertebra.
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