The Largo™ PEEK Transforaminal Lumbar Interbody Fusion (TLIF) Cage was developed for posterior stabilization of the lumbar spine. It is a banana-shaped implant featuring a convex, bullet nose design and an axial void designed to hold autograft material. The subject device is made in various lengths and designed with angular teeth to allow the implant to grip the superior and inferior end plates to provide resistance to expulsion. The devices range from 7mm to 16mm in height and footprints of 11 x 28 up to 13 x 37 mm. The cages incorporate an A/P lordotic angle of 5 degrees.