Product description For stand-alone ALIF with four screws and partial VBR procedures the PILLAR™ SA PEEK Spacer System provides multiple sizes and lordotic angles with an ovoid shape implant to match patient anatomy. The wide central opening holds optimal graft material while the surface teeth are designed for anti-migration. X-ray markers provide crystal clear radiographic identification. Varieties of flexible instrumentation assist surgeons with accessing difficult to reach anatomy. Features & Benefits Surgeon Benefits 4 Bone Screw design enhances implant stability Medially oriented Bone Screws for optimal bone purchase Wide central opening to hold optimal graft material Ovoid shape parallels the apophyseal ring of the vertebral body Multiple sizes match variable patient anatomies Cover Plate stops the possibility of screw back-out and has a nearly zero profile Multiple choices of flexible instrumentation to access difficult to reach anatomies