Synthes 5.0mm Self-Drilling Schanz Screw | 60mm Thread | 175mm Length | 294.785

The Synthes 294.785 is a high-performance percutaneous pin designed for the construction of External Fixation frames. As a 5.0mm diameter Schanz screw, it provides the structural rigidity required to stabilize major long-bone fractures, particularly in the femur, tibia, and humerus.

The Self-Drilling tip is a critical advancement in trauma surgery, featuring a sharp, trocar-style cutting geometry that allows the screw to be inserted directly into the bone using a power driver. This eliminates the need for a separate pre-drilling step, significantly reducing operative time and minimizing the risk of thermal necrosis by ensuring a precise, high-tolerance fit between the screw and the cortex.

Key Specifications

• Manufacturer: Synthes (DePuy Synthes)

• Model / REF: 294.785

• Material: 316L Stainless Steel (Surgical Grade)

• Screw Diameter: 5.0 mm

• Thread Length: 60 mm

• Total Length: 175 mm

• Tip Profile: Self-Drilling / Self-Tapping

• Compatibility: Standard External Fixator Clamps (Large/Medium Systems)

• Quantity: Individually Packaged, Sterile

Technical & Clinical Advantages

• Self-Drilling Efficiency: The integrated drill tip allows for rapid monocortical or bicortical engagement. This is especially vital in emergency "damage control" orthopedics, where quick stabilization of unstable fractures is paramount.

• Radial Preload Stabilization: The design of the 5.0mm Schanz screw creates a "radial preload" during insertion. This mechanical tension ensures a tight interface with the bone, which is essential for preventing pin-tract loosening—a common complication in long-term external fixation.

• High Fatigue Resistance: Manufactured from cold-worked 316L stainless steel, the 294.785 is designed to withstand the significant bending moments and cyclic loads encountered in weight-bearing or high-motion anatomical regions.

• Optimized 60mm Thread: The 60mm thread length provides ample surface area for bicortical purchase in larger long bones, ensuring that the threads fully engage both the near and far cortex for maximum frame stability.

• Blunt Shank Transition: The smooth 175mm shank allows for easy passage through soft tissue envelopes, reducing irritation at the skin-entry site.

Applications

• Damage Control Orthopedics: Rapid stabilization of femoral and tibial shaft fractures in polytrauma patients.

• Complex Periarticular Fractures: Providing a stable "bridge" across comminuted knee or ankle fractures.

• Corrective Osteotomies: Anchoring limb-lengthening or deformity-correction frames (e.g., Ilizarov or Monolateral fixators).

• Pelvic Stabilization: Use in anterior pelvic external fixators for the emergency stabilization of "open book" pelvic ring disruptions.

Condition & Quality Assurance

• Status: NEW — Factory Sealed & Sterile.

• Integrity: This implant is securely packaged within its original manufacturer's sterile peel-pouch. The packaging is intact, ensuring the product's sterility, material integrity, and full lot traceability for clinical use in 2026.

• Professional Standards: With over 25 years of experience in surgical hardware, Primis Medical ensures all external fixation components are stored in climate-controlled environments to preserve the mechanical and sterile integrity of the system.

Shipping & Handling

• Secure Logistics: Shipped in reinforced, impact-resistant packaging to ensure the sterile barrier is protected and the self-drilling tip remains sharp and pristine.

• Fast Dispatch: Ships within 1 business day.