Synthes 204.670 3.5mm Pelvic Cortex Screw Self-Tapping 70mm

Synthes 3.5mm Pelvic Cortex Screw | Self-Tapping | 70mm | 204.670

The Synthes 204.670 is a specialized, high-strength internal fixation implant engineered for the complex demands of pelvic and acetabular surgery. As a 3.5mm diameter screw with an extended 70mm length, it is a foundational component of the Synthes Pelvic Fragment System. This screw is specifically designed to navigate the deep anatomical corridors and dense cortical bone found in the pelvic ring, providing secure anchorage where standard small-fragment screws lack sufficient reach.

Constructed from 316L Surgical Stainless Steel, the 204.670 features a self-tapping distal tip with precision-machined cutting flutes. This design allows the screw to create its own thread path as it is advanced, enhancing surgical efficiency and providing the surgeon with superior tactile feedback when crossing narrow pelvic columns.

Key Specifications

• Manufacturer: Synthes (DePuy Synthes)

• Model / REF: 204.670

• Material: 316L Stainless Steel (Surgical Grade)

• Diameter: 3.5 mm

• Overall Length: 70 mm

• Thread Type: Self-Tapping / Fully Threaded

• Thread Pitch: 1.25 mm (Fine Pitch)

• Core Diameter: 2.4 mm

• Head Diameter: 6.0 mm

• Drive Type: 2.5 mm Small Hexagonal Socket

• Quantity: 1 Each

Technical & Clinical Advantages

• Extended Reach for Pelvic Corridors: The 70mm length is essential for spanning the long cortical bone paths required in pelvic surgery, such as the posterior column of the acetabulum or the sacroiliac region.

• Self-Tapping Efficiency: The integrated cutting flutes at the screw tip allow for direct insertion into a pre-drilled 2.5mm pilot hole. This reduces operative time by eliminating the need for a separate tapping step—a critical advantage in long-duration pelvic reconstructions.

• Superior Torque Control: The 6.0mm head with a 2.5mm hexagonal socket ensures a high-fidelity interface with the driver. This minimizes the risk of head stripping or "cam-out" during high-torque insertion into the dense cortical bone of the ilium.

• High Strength-to-Slenderness Ratio: With a 2.4mm core diameter, this screw provides the torsional strength necessary to resist bending forces under physiological loads while maintaining a slim 3.5mm profile to minimize bone displacement.

• Interfragmentary Compression: While fully threaded, the 204.670 is frequently used in a lagging technique. By utilizing a 3.5mm gliding hole in the near cortex and a 2.5mm pilot hole in the far cortex, the screw head provides active compression across the fracture site.

Applications

• Acetabular Fractures: Stabilization of anterior and posterior column fractures.

• Pelvic Ring Disruptions: Fixation of iliac wing fractures or stabilization of the sacroiliac joint.

• Pelvic Osteotomies: Providing stable fixation for corrective bone procedures.

• Neutralization Plating: Securing pelvic reconstruction plates (3.5mm) to the bone surface in complex trauma cases.

Condition & Quality Assurance

• Status: NEW — Factory Sealed.

• Integrity: This implant is securely housed within its original manufacturer's packaging. Both inner and outer seals are intact, ensuring full material integrity and suitability for clinical use in 2026.

• Sterilization Note: This device is typically provided as a NON-STERILE implant within the packaging. It MUST be properly cleaned and sterilized (standard steam autoclave) in accordance with validated hospital protocols 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 pelvic implants are handled with the highest degree of quality control.

Shipping & Handling

• Secure Logistics: Shipped in a reinforced, rigid container to ensure the precision-machined 70mm threads and hexagonal drive remain pristine.

• Fast Dispatch: Ships within 1 business day.