Indications ? Intervertebral disc prolapse ? Disc luxation or herniation ? Mechanical instability ? Calcification of the posterior structures ? Osteochondrosis ? Spinal canal stenosis Specific Advantages ? Titanium markers Easy identification and positioning ? Toothed.superior and inferior surfaces Assuring a secure seating of the implant ? Fenestrated implant Allowing good bony in-growth ? Oblong form Assuring an economic and efficient technique ? Wide surface in width designed to avoid collapse