Expanding Carbon Fiber Innovation into the Posterior Cervical Spine with Broad Clinical Indications – “ Designed for Visibility, Engineered for Strength ”. The FDA has cleared both the Full Carbon Fiber & the Hybrid Posterior Cervical Screw Systems for use across a broad range of indications, including oncology, degenerative conditions, trauma, revision surgeries, and infections . CarboFix is the only company which provides surgeons with complete solutions that supports both