One embodiment of a spinal implant 10 includes a body 11 sized and configured for engagement between adjacent vertebrae V. The body 11 includes two opposite faces 12, 14 and an outer surface 13 between the two faces 12, 14. The body 11 includes a porous biocompatible material for permitting...http://www.google.ca/patents/US5702449?utm_source=gb-gplus-sharePatent US5702449 - Reinforced porous spinal implants