he AXLE™-PEEK Interspinous Fusion System consists of spinal implants that are FDA-cleared for the treatment of degenerative disk disease (DDD). The system expands on X-spine’s AXLE™ line of interspinous fusion devices by incorporating an insert manufactured from PEEK-OPTIMA® provided by Invibio Biomaterial Solutions. The AXLE-PEEK implants can be placed through a smaller incision and with less disruption of tissues than traditional spinal fusion devices. With this clearance, X-spine uniquely offers spine surgeons a choice of implant materials, either titanium or polymer, in a single device.