Synthes 207.045 4.0mm Cancellous Bone Screw Partially Threaded 45mm

Synthes 4.0mm Cancellous Bone Screw | Partially Threaded | 45mm Length | 207.045

The Synthes 207.045 is a precision-engineered internal fixation implant designed specifically for use in cancellous (spongy) bone. As a 4.0mm diameter screw with a 45mm length, it is a foundational component of the Synthes Small Fragment System. This screw features a partially threaded design, which is the mechanical requirement for creating a "lag effect" to achieve compression across a fracture line in metaphyseal or epiphyseal bone.

Forged from implant-grade 316L Stainless Steel, the screw is non-absorbable and designed to provide high-tensile structural support during the biological stages of bone healing.

Key Specifications

• Manufacturer: Synthes (DePuy Synthes)

• Model / REF: 207.045

• Material: 316L Stainless Steel (Surgical Grade)

• Screw Diameter: 4.0 mm

• Thread Profile: Partially Threaded (Lag Design)

• Screw Length: 45 mm

• Core Diameter: 1.9 mm

• Head Type: 2.5 mm Hexagonal Socket

• Sterility: Non-Sterile (Requires steam sterilization prior to clinical use)

• Quantity: Individually Packaged in original manufacturer's packaging

Technical & Clinical Advantages

• Mechanical Lag Effect: The partial threading ensures that the threads engage only the far (distal) bone fragment. Because the proximal shaft is smooth, the screw head draws the near cortex toward the far cortex as the screw is tightened, creating high-pressure interfragmentary compression.

• Cancellous Thread Geometry: The deep, widely spaced threads are specifically designed to "grip" the porous matrix of cancellous bone, which has lower density than cortical bone. This geometry maximizes surface area contact to prevent hardware pull-out.

• Angular Stability: When used in conjunction with a Small Fragment LCP (Locking Compression Plate) or a washer, the 2.5 mm hexagonal head ensures stable torque transmission, allowing the surgeon to seat the screw securely without stripping the drive.

• Biocompatibility and Durability: The surgical steel construction is resistant to corrosion and is designed for long-term internal fixation. It is non-degradable, maintaining its mechanical properties throughout the patient's recovery.

• Versatility in Small Fragment Sets: The 4.0 mm diameter is compatible with standard Synthes instrumentation, including the 2.5 mm drill bit for the pilot hole and the 3.5 mm/4.0 mm countersink tools.

Applications

• Trauma Surgery: Stabilization of metaphyseal fractures in the distal radius, tibial plateau, or pilon.

• Malleolar Fixation: Ideal for medial malleolar fractures where the bone is primarily cancellous and requires compression.

• Pediatric Orthopedics: Fixation of epiphyseal injuries or triplane fractures where precision and compression are required.

• Soft Tissue to Bone: Can be used with a spiked washer for the reattachment of ligaments or tendons to metaphyseal bone.

Condition & Sterilization Requirements

• Status: NEW — Original Manufacturer Packaging. * Important Note: This item is provided in its original packaging but is Non-Sterile. It must be processed through a validated sterilization cycle (typically steam autoclaving) in accordance with the healthcare facility's protocols and Synthes' IFU (Instructions for Use) before clinical implantation.

• Professional Standards: Primis Medical ensures all hardware is stored in climate-controlled environments to maintain the structural integrity of the 316L steel.

Shipping & Handling

• Secure Logistics: Shipped in reinforced packaging to protect the precision-machined 4.0 mm threads and ensure the hexagonal head remains pristine.

• Fast Dispatch: Ships within 1 business day.