A spinal spacer assembly is provided. The spinal spacer assembly includes a spinal spacer (100) having a wall configured to enclose a hollow interior (122), wherein the wall is further configured to have a top portion (102) and a bottom portion (104). The top and bottom portions are configured to include a plurality of protrusions (118) configured to protrude away from the top and bottom portions. The wall is further configured to have a variable degree curvature and include a plurality of grooves (116) and an opening (126).
