The M6-L® 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 implant is comprised of a viscoelastic polymer nucleus to simulate a native nucleus. It has an 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 dual-keel design provide the optimal acute and long term fixation. The M6-L® is available in medium, large and extra large footprints and 6° – 16° of lordosis to provide the optimal fit which provides the ability to achieve the optimal outcome in wide variety of unique anatomies.