2.4/2.7/3.0/3.5/4.0mm Cannulated Headless Compression Screw Instrument Set

Cannulated Headless Compression Screw Instrument Set

1,Achieving Dynamic Compression and Stable Fusion

Tapered Thread Design: The screw thread pitch gradually changes from tip to tail (typically becoming denser). During insertion, this design generates continuous automatic compression on the fracture line, tightly aligning bone fragments and significantly promoting primary healing.

Headless Design: The screw can be completely buried beneath the cartilage, preventing wear and impact on the articular cartilage. This is particularly suitable for fractures involving articular surfaces such as the talus, humeral condyle, and scaphoid.

2,Ensuring Implant Precision and Safety

Hollow Design: All screws can be implanted along pre-placed K-wires, ensuring precise and error-free placement. This is especially advantageous for deep or visually constrained intra-articular surgeries.

Dedicated Instrumentation: The instrument set includes specialized guides, wrenches, and depth gauges perfectly matched to the screws. This prevents slippage, ensures effective torque transmission, and enables precise control.

3,Optimizing Surgical Workflow and Efficiency

Ready-to-Use: The instrument set integrates all tools from guidewire positioning, drilling, depth measurement, compression, to final screw insertion. Standardized procedures minimize intraoperative instrument retrieval time.

Streamlined Steps: Integrated drilling and tapping functions simplify operations, reducing overall surgical duration.

Technical Specifications

Features

Screw Design Characteristics:

Material: Typically medical-grade pure titanium or titanium alloy, offering excellent biocompatibility and no interference with postoperative MRI scans.

Threads: Wide posterior threads provide strong retention in subchondral bone or cancellous bone; fine anterior threads or cutting grooves facilitate smooth insertion.

Specifications: Available in multiple diameters (e.g., 3.5mm, 4.0mm) and lengths to accommodate different skeletal sites.

Instrument Set Features:

Dedicated guide sleeve: Ensures concentric alignment between drill and guide needle, preventing drilling deviation.

Graduated torque wrench: Delivers controlled torque for optimal compression while preventing over-tightening.

Broken nail extraction tool: Provides a backup solution for potential complications, demonstrating system integrity.

Clinical Applications

1. Intra-articular fractures: Talus fractures, humeral capitellum fractures, posterior tibial plateau fractures, scaphoid fractures, etc.

2. Small fragment fractures: Medial/lateral malleolar fractures, olecranon process fractures, phalangeal/metacarpal intra-articular fractures.

3. Arthrodesis procedures: Provides compression fixation during fusion of small joints such as the ankle, wrist, and interphalangeal joints.

Conclusion

Compared to conventional hollow pins or solid screws, the core value of the headless tapered hollow pin instrument kit lies in its “three-in-one” solution: ensuring surgical precision through precision instruments, achieving biomechanical auto-compression and articular surface protection via unique screw design, and ultimately delivering superior clinical healing outcomes.