The M6-C® artificial disc replacement is designed to replicate the anatomic structure and biomechanical performance of a natural disc. Its innovative design incorporates an artificial nucleus to allow axial compression and a woven fibre annulus for controlled range of motion in all six degrees of freedom. The M6-C® is comprised of a viscoelastic polymer nucleus to simulate a native nucleus, ultra high molecular weight polyethylene fibre annulus for controlled motion in all planes and axes of rotation and a viscoelastic polymer outer sheath designed to minimise tissue in-growth and debris migration. Titanium endplates with low profile tri-keel design provide the optimal acute and long term fixation.