The ArcasUltra polyaxial screws and locking screws require the use of three tools for implantation. First, the screw body driver uses a T20 bit in order to place the screw within the bone. The second tool is the locking screw driver, which uses a T25 bit to secure the locking screw and fully lock in the system. The counter-torque tool is used to stabilize the head of the tulip and the rod in order to lock in the locking screw with the T25 driver.
The ArcasUltra polyaxial screws and locking screws require the use of three tools for implantation. First, the screw body driver uses a T20 bit in order to place the screw within the bone. The second tool is the locking screw driver, which uses a T25 bit to secure the locking screw and fully lock in the system. The counter-torque tool is used to stabilize the head of the tulip and the rod in order to lock in the locking screw with the T25 driver.
