Patent attributes
An interbody spinal fusion implant for surgical implantation within a disc space between two adjacent vertebral bodies in a segment of a human spine includes multiple bone growth promoting materials. The implant includes upper and lower portions for contacting each of the adjacent vertebral bodies when positioned therein. Each of the upper and lower portions have at least one opening adapted to communicate with one of the adjacent vertebral bodies. The openings are in communication with one another and adapted for permitting for the growth of bone from adjacent vertebral body to adjacent vertebral body through the implant. The implant includes a hollow interior for holding bone growth promoting material. In one embodiment, the bone growth promoting material includes a liquid fusion promoting material and a solid fusion promoting material other than bone provided in at least a portion of the hollow interior to promote bone growth from adjacent vertebral body to adjacent vertebral body through the implant.