Synthes DHS/DCS Lag Screw | 12.7mm Thread | 75mm | 280.750

The Synthes 280.750 is a critical internal fixation component of the Dynamic Hip Screw (DHS) and Dynamic Compression Screw (DCS) systems. This 75mm lag screw is specifically engineered to provide robust anchorage within the femoral head or distal femur, facilitating the "sliding" mechanism that is the hallmark of these osteosynthesis systems.

The 12.7mm thread diameter is designed to provide a massive surface area for purchase in cancellous bone. This high-profile thread maximizes pull-out resistance, which is vital for stabilizing hip fractures in elderly patients with decreased bone mineral density. When coupled with a DHS side plate, this screw allows for controlled fracture impaction along the axis of the screw, promoting biological healing through 2026 surgical standards.

Key Specifications

• Manufacturer: Synthes (DePuy Synthes)

• Model / REF: 280.750

• Material: 316L Surgical Stainless Steel

• Thread Diameter: 12.7 mm

• Overall Length: 75 mm

• Cannulation: 3.2 mm (Compatible with 2.5mm Guide Wires)

• System Compatibility: Synthes DHS and DCS Side Plates

• Features: Self-Tapping Distal Threads, Precision-Honed Shaft

• Quantity: 1 Each

Technical & Clinical Advantages

• Controlled Dynamic Compression: The smooth shaft of the 280.750 is precision-ground to slide freely within the barrel of a DHS/DCS plate. This allows the bone fragments to settle and impact postoperatively, shifting the weight-bearing load from the implant to the bone.

• High-Torque Cancellous Grip: The deep 12.7mm threads are optimized for the femoral head's trabecular structure. The wide pitch ensures a strong "bite" that resists the high shear and rotational forces present at the proximal femur.

• Cannulated for Guided Accuracy: The 3.2mm internal bore allows the screw to be inserted over a 2.5mm guide wire. This ensures the screw is centered perfectly within the femoral neck, minimizing the risk of "cut-out" through the superior cortex of the femoral head.

• Self-Tapping Distal Tip: Specialized cutting flutes allow for easier insertion into the femoral head. While the path is typically prepared with a triple-reamer, the self-tapping threads ensure a tight, custom fit in the bone.

• 316L Stainless Steel Biocompatibility: Forged from vacuum-melted surgical steel, the 280.750 offers the high fatigue strength and corrosion resistance required to support physiological loads during the healing process.

Applications

• Intertrochanteric Hip Fractures: The primary fixation element for stable and unstable pertrochanteric fractures.

• Basilar Neck Fractures: Providing rotational stability and compression across the femoral neck.

• Subtrochanteric Fractures: When used in conjunction with a long DHS plate.

• Distal Femur Fractures: Serving as the anchor for the DCS (Dynamic Compression Screw) system in supracondylar applications.

Condition & Quality Assurance

• Status: NEW — Factory Sealed.

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

• 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.

• Note on User Text: Please note that while the user-provided text mentions "wood and metal," this is a Class III Medical Device intended exclusively for human orthopedic implantation.

Shipping & Handling

• Secure Logistics: Shipped in reinforced packaging to ensure the 75mm shaft and 12.7mm threads remain pristine and within factory tolerances.

• Fast Dispatch: Ships within 1 business day.