Synthes 208.403 6.5mm Cannulated Screw 16mm Thread 40mm

Synthes 6.5mm Cannulated Screw | 16mm Thread | 40mm | 208.403

The Synthes 208.403 is a high-strength internal fixation implant engineered for stable anchorage and active interfragmentary compression in cancellous bone. As a 6.5mm diameter screw with a 40mm overall length and a 16mm partial thread, it is a primary component of the Synthes Large Fragment Cannulated Screw System.

The partially threaded design (16mm thread length) is specifically engineered to create a "lag effect." Because the threads only engage the far (distal) bone fragment while the smooth 24mm proximal shaft glides through the near fragment, the screw head draws the two pieces together. This results in high-tension compression across the fracture line, which is essential for primary bone healing and rotational stability in high-load anatomical regions.

Key Specifications

• Manufacturer: Synthes (DePuy Synthes)

• Model / REF: 208.403

• Material: 316L Surgical Stainless Steel

• Screw Diameter: 6.5 mm

• Overall Length: 40 mm

• Thread Length: 16 mm (Short Thread / Lag Design)

• Cannulation: 2.9 mm (Compatible with 2.8mm Guide Wires)

• Head Design: 7.9 mm Diameter / 4.0 mm Hexagonal Socket

• Quantity: 1 Each

Technical & Clinical Advantages

• Precision Guided Placement: The 2.9mm internal bore allows the screw to be delivered over a 2.8mm guide wire. This enables the surgeon to confirm the trajectory via fluoroscopy before the screw is seated, facilitating minimally invasive percutaneous placement and reducing soft-tissue disruption.

• Optimized Lag Compression: The 16mm thread length ensures that in most metaphyseal applications, the threads bypass the fracture line entirely to engage the far cortex. This maximizes the compressive force generated by the screw head against the near cortex.

• Self-Drilling & Self-Tapping Tip: The distal tip features precision-machined cutting flutes that eliminate the need for separate drilling and tapping steps in cancellous bone. This reduces operative time and minimizes thermal damage to the bone.

• High-Torque Hexagonal Drive: The 4.0mm hexagonal socket provides a robust interface for controlled torque application. This ensures secure final seating and easy removal, even after long-term implantation.

• Low-Profile Head: The 7.9mm head is designed to minimize hardware prominence, which is critical in areas with thin soft-tissue coverage to prevent bursa or tendon irritation.

Applications

• Femoral Neck Fractures: Providing stable, compressed fixation of the femoral head.

• Tibial Plateau Fractures: Stabilizing articular fragments and providing a buttress against axial loads.

• Ankle Arthrodesis: Creating high-tension compression for joint fusions.

• Slipped Capital Femoral Epiphysis (SCFE): Precise, guided stabilization of the epiphysis in pediatric patients.

• Subtrochanteric Fractures: Used as auxiliary fixation in complex proximal femoral trauma.

Condition & Quality Assurance

• Status: NEW — Original Manufacturer's Packaging.

• Integrity: The implant is securely housed within its original packaging, ensuring the precision-machined threads and internal cannulation remain pristine.

• Sterilization Note: This device is provided as a NON-STERILE implant. It MUST be properly cleaned and sterilized via validated steam autoclave protocols in accordance with facility guidelines and Synthes’ Instructions for Use (IFU) prior to clinical implantation.

• Professional Standards: With over 25 years of experience in orthopedic logistics, Primis Medical ensures all Synthes hardware is handled and stored to maintain mechanical and chemical precision.

Shipping & Handling

• Secure Logistics: Shipped in reinforced packaging to ensure the 40mm shaft remains perfectly straight and the 2.9mm cannulation remains unobstructed.

• Fast Dispatch: Ships within 1 business day.