An expandable cage bone screw (self-drilling & self-tapping) is a specialized fixation screw used in conjunction with expandable interbody cages, particularly those with integrated plates or fixation systems. It is designed to anchor the cage securely to adjacent vertebral bodies, providing immediate stability and preventing implant migration.

The screw features a self-drilling tip, allowing it to penetrate bone without the need for pre-drilling, and a self-tapping thread design, which forms threads within the bone during insertion. This dual functionality reduces surgical steps, shortens operative time, and improves procedural efficiency.

Manufactured from medical-grade titanium alloy or stainless steel, the screw offers high strength, corrosion resistance, and excellent biocompatibility. Its thread geometry is optimized for strong bone purchase and load distribution, ensuring reliable fixation even under physiological loads.

These screws are commonly used in cervical and lumbar fusion procedures, especially with expandable cage systems, where secure fixation and ease of insertion are critical for successful outcomes.

🔹 Key Features

• Self-drilling tip (no pre-drilling required)
• Self-tapping threads for secure fixation
• Designed for use with expandable cage systems
• Provides strong bone anchorage
• Reduces surgical time and steps
• High strength and biocompatibility

🔹 Common Applications

• Expandable cage fixation systems
• Cervical and lumbar fusion surgeries
• Degenerative disc disease
• Spinal instability and trauma
• Minimally invasive spine procedures