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The FBC 921™ is intended for spinal fusion procedures to be used with autogenous bone graft in skeletally mature patients with degenerative disc disease ("DD") at one or two contiguous spinal levels from L2-S1. DDD is defined as discogenic back pain with degeneration of the disc confirmed by history and radiographic studies. These patients should have had six months of non-operative treatment. These DDD patients may have had a previous non-fusion spiral surgery at the involved spinal level(s) and may have up to Grade 1 spondylolisthesis at the involved level(s). This device is intended to be used with posterior supplemental spinal fixation systems that have been cleared for use in the lumbosacral spine.

The FBC 921™ is a two-part ALIF device consisting of top and bottom components with an integral anterior plate to allow additional fixation. Both the bottom and the top components come in three footprints. The top component comes in three footprints and one size. It has a starting lordosis of 9 degrees. Lordosis for each assembly is adjustable between 9 and 21 degrees. The bottom component includes the height variation. It comes in the three footprints and four heights (8, 10, 12, and 14mm). The device is anchored to the superior and inferior vertebra using three Ø5.5 variable angle screws. The top and bottom components are made of titanium alloy (Ti-6Al-4V) additively manufactured from biocompatible titanium alloy (Ti-6Al-4V) using powder per ASTM F3001 which are then machined to their final geometry. Screws are made from an implant grade titanium alloy (Ti6Al4V ELI) meeting the requirements of ASTM F136. The FBC 921™ is a single-use device delivered sterile (gamma sterilization) and supplied with surgical instruments (reusable - provided non-sterile).