Efficacy of ARISTA-AH for Restoring Hemostasis Following Posterior Long-segment Spinal Fusion.

During the surgical procedure, hemostasis will be achieved using the standard of care (electrocautery, pressure, ligature or any hemostatic agent).

"During the surgical procedure, hemostasis will be achieved using the standard of care (electrocautery, pressure, ligature or any hemostatic agent). Before surgical wound closure, the corresponding amount of ARISTA-AH will be applied to completely cover the bleeding site :~* 5g for 5 to 8 instrumented vertebra~* 10g fo 9 or more instrumented vertebra"