An interbody fusion device for engagement between vertebrae includes a pair of
lateral spacers for spacing the vertebrae, and a connecting member adapted to couple
together the lateral spacers when inserted between the vertebrae. The connecting
member, individual lateral spacers, or the entire spinal spacer can be made of
bone in order to promote fusion of the vertebrae. The modular construction permits
use of bone segments otherwise unsuitable due to size or strength in stable fusion devices.
