| 摘要 |
This invention relates to arthodesis for stabilizing the spine. More specifically, the present invention is directed to an intervertebral spacer (10, 40, 70, 90, 130, 160, 240, 260 and 300) formed of a bone material and to methods of treating patients habing spinal deformities. The invention provides a spinal implant assembly, for example, spacer (10) comprising bone-derived components(12, 14, 16 and 16A). The bone-derived components can be formed into modular units that can be assembled to provide a wide variety of implant configurations. In addition, the bone-derived components can form scaffold that can withstand the shear and impact forces necessary to insert the assembled implant into a disc space between adjacent vertebrae. In preferred forms the implants define an open spacer that serves as a depot for receipt of an osteoconductive material (48). The ostoegenic material is preferably a moldable filler that can form a molded reinforced implant. |
