Xtant Medical Holdings has your back(bone). Formerly named Bacterin International, the company develops, manufactures, and markets biomedical devices, including orthopedic biomaterials used for bone grafts, joint surgery, and other skeletal reconstructive procedures. Its biologics products include OsteoSponge, a bone void filler made of 100% human bone; OsteoLock, a stabilization dowel for spinal procedures; and BacFast, a dowel with demineralization technology to aid in bone grafting. Additionally, the company makes implants and surgical instruments under the Axle, IRIX-C, Calix, Xpress, and Silex brand names.The company was founded in 1998.