May 26, 2020 Westmont, Ill., SpineCraft announces the introduction of Sacral Alar-Iliac (S2AI) screws to the ASTRA SPINE SYSTEM platform. The ASTRA SPINE SYSTEM is designed for complex spine, deformity, revision and degenerative procedures. The popularity of S2AI fixation continues to expand, but traditional implants lack important features required for the demands of the technique.  …