Interbody fusion ring and method of using the same

A spinal implant system for implantation between adjacent vertebrae comprising:

• an injectable hollow annular ring including a web disposed within an internal volume of the ring, the web structured to control cross-sectional expansion of the ring at forces within a range that will be applied to the device when engaging adjacent vertebrae of a patient, wherein the web is attached to and extends between first and second opposing internal surfaces of the ring, the web extending parallel to and spaced apart from upper and lower walls of the ring, wherein the upper and lower walls are configured to engage adjacent vertebrae, at least one access port located on an exterior surface of the ring open to the internal volume of the ring, and at least one access port located on an exterior surface of the ring open to an interior cavity bordered by the ring;
• a load-bearing material for injection in to the internal volume of the ring;
• and
• an osteobiologic composition for placement in the interior cavity bordered by the ring.

A spinal implant kit for implantation between adjacent vertebrae comprising:

• an injectable annular ring having upper and lower walls configured to engage adjacent vertebrae, the ring having a web disposed within an internal volume of the ring, the web extending transversely through the internal volume of the ring parallel to and spaced apart from upper and lower walls, connecting opposing side walls of the ring, the web structured to control cross-sectional expansion of the ring at forces within a range that will be applied to the device when engaging adjacent vertebrae of a patient, at least one access port disposed in a side wall of the ring, the access port open to the internal volume of the ring, and at least one access port open to an interior cavity bordered by the ring;
• a load-bearing, hardenable material;
• an osteobiologic composition;
• a balloon sized and shaped to fit through the access port into the interior cavity bordered by the ring and to expand in the interior cavity to distract adjacent vertebrae;
• at least one injection device to inject the load-bearing material into the internal volume of the ring, to fill the balloon, or to inject the osteobiologic composition into the interior cavity bordered by the ring;
• and
• at least one insertion device to place the ring and balloon into a space between adjacent vertebrae.