This cervical fusion device provides an excellent balance between porosity and strength. TM-S is the only cervical spinal implant made with Trabecular Metal™ Material, which is a unique, highly porous biomaterial made from elemental tantalum with structural, functional and physiological properties similar to that of bone. Trabecular metal is up to 80 percent porous and has a fully open interconnected pore structure, which offers an osteoconductive scaffold to allow for bony in-growth into the implant. Trabecular metal's high coefficient of friction to provide initial fixation and modulus of elasticity similar to cancellous bone.