| 摘要 |
An intervertebral disc space implant (8) includes spaced-apart bone engageme nt portions (30) that define an intermediate chamber that holds bone growth inducing material into contact with adjacent vertebral bodies. The implant ( 8) is expandable to establish and maintain desired intervertebral spacing durin g fusion. The implant (8) includes a first member (30) and a second member (30 ) arranged to move relative to each other by action of an expansion member (10 ), the first member being engageable with the vertebral body below the disc spa ce.
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