Vertebral Spacer TR (TRAVIOS)
Fig.1 Vertebral Spacer TR (TRAVIOS) The Vertebral Spacer TR is a radiolucent cage system designed for use in transforaminal lumbar interbody fusion procedures from L1 through L5. The material is PEEK Optima, a biocompatible inert polymer. It enables adequate compression of autograft in and around the implant, thus assuring better stress distribution and load sharing, providing an optimal environment for probiological fusion.
The Vertebral Spacer TR has a kid-ney-shaped footprint. The cranial/caudal surface is convex in the medial lateral direction to provide optimal interface with the lumbar vertebral endplate geometry. The implant has two central holes to receive autograft or other osteo-inductive material and to allow fusion to occur through the implant.
Fig.1 Pre- and postoperative x-rays, lateral view. 
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