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.
