Emerging Implant Technologies (EIT), a German company, famous for its Cellular Titanium technology, has received FDA clearance again, to expand their EIT Cellular Titanium Cervical Cage to be used in multiple contiguous cervical levels (C2 to T1) and this is the first multi-level 3D printed cervical cage to enter the US market. It is designed to be used with autogenous and/or allogenic bone grafts to facilitate fusion, and should be used with supplemental fixation.
Source: https://www.tctmagazine.com/3d-printing-news/emerging-implant-technologies-fda-cervical-cage/