Internal Torx: The  simplicity of the locking mechanism provides for better accessibility and visibility than side-tightening locking mechanisms.

Secure Engagement: The screw trough is designed withinterrupted splines to firmly grasp the rod. By design, the closed and open implants place less stress on rod, yielding improved constructfatigue lif.

Self-Tapping screw thread: In most cases, VCSS screws does not require tapping. However, for surgeons who prefer to tap, the system offers multiple tap sizes.

Tappared Minor Diameter: VCSS Screws are uniquely engineered to be strongest at high-stress points. Their tapered minor diameter, the result of extensive engineering analysis strikes an optimal balance between factors of pullout, bending strength and fatigue life.