The new system retains all the important design principles (Modular Tibial Stems, Thicker Poly Bearings, and Intramedullary Guidance) that make the original INBONE™ Total Ankle system the most advanced total ankle system on the market while introducing such design enhancements as Sulcus Articulation, Additional Talar Fixation, AP Long Tibial Trays, Trial Reduction Placement of the Talar Component, and Bone Removal Instrumentation.