A surgical implant includes a first end plate having a substantially
X-shaped configuration. A second end plate is spaced apart for the first
end plate. A central longitudinal axis centrally extends between the
first end plate and the second end plate. Four spaced apart beams extend
from the first end plate to the second end plate at location spaced apart
form the central longitudinal axis. An open passageway extends between
each adjacent pair of the beams and intersects with the central
longitudinal axis.