초록 ▼

Spinal spacers 20 are provided for fusion of a motion segment. The spacers include a load bearing member 21 having a wall 22 sized for engagement within a space between adjacent vertebrae to maintain the space and an effective amount of an osteogenic composition to stimulate osteoinduction. The oste

Spinal spacers 20 are provided for fusion of a motion segment. The spacers include a load bearing member 21 having a wall 22 sized for engagement within a space between adjacent vertebrae to maintain the space and an effective amount of an osteogenic composition to stimulate osteoinduction. The osteogenic composition includes a substantially pure osteogenic factor in a pharmaceutically acceptable carrier. In one embodiment the load bearing member includes a bone graft impregnated in an osteogenic composition. In another embodiment, the osteogenic composition 30 is packed within a chamber 25 defined in the graft. Any suitable configuration of a bone graft is contemplated, including bone dowels, D-shaped spacers and cortical rings.

대표청구항 ▼

What is claimed is: 1. A spinal spacer for insertion into a disc space between adjacent vertebrae, said spacer comprising a cylindrical bone dowel configured for engagement within a concave space cut in the adjacent vertebrae, said bone dowel comprising a cortical bone section cut from a bone of a d

What is claimed is: 1. A spinal spacer for insertion into a disc space between adjacent vertebrae, said spacer comprising a cylindrical bone dowel configured for engagement within a concave space cut in the adjacent vertebrae, said bone dowel comprising a cortical bone section cut from a bone of a donor, said cortical bone section having impregnated therein an effective amount of a first osteogenic composition including a first substantially pure osteogenic factor.