Synthes 280.25 DHS/DCS Lag Screw 12.7mm Thread/125mm

Synthes DHS/DCS Lag Screw | 12.7mm Thread | 125mm | 280.25

The Synthes 280.25 is the central compressive element of the Dynamic Hip Screw (DHS) and Dynamic Condylar Screw (DCS) systems. This 125mm lag screw is engineered to provide massive purchase in the femoral head (for hip fractures) or the femoral condyles (for distal femur fractures).

Its primary function is to interface with a DHS or DCS side plate, allowing the bone fragments to "slide" and collapse into one another under physiological loading. This controlled impaction promotes secondary bone healing and is the mechanical standard for treating intertrochanteric hip fractures in 2026.

Key Specifications

• Manufacturer: Synthes (DePuy Synthes)

• Model / REF: 280.25

• Material: 316L Surgical Stainless Steel

• Thread Diameter: 12.7 mm

• Overall Length: 125 mm

• Shaft Diameter: 8.0 mm

• Cannulation: Compatible with 2.5mm threaded guide pins

• Internal Thread: For use with DHS/DCS compression screw

• Quantity: 1 Each

Technical & Clinical Advantages

• High-Torque Thread Profile: The 12.7mm wide-profile threads are designed specifically for cancellous bone. They provide maximum surface area to resist "cut-out," which is a primary concern when fixating osteoporotic bone in geriatric hip fractures.

• Cannulated Design: The screw features a hollow core, allowing it to be inserted over a 2.5mm guide pin. This ensures the screw follows a perfectly centered trajectory into the femoral neck and head, verified via fluoroscopy before the final insertion.

• Gliding Surface: The 8.0mm shaft is precision-polished to slide freely within the barrel of the DHS/DCS side plate. This "sliding" action converts the patient's weight into compressive force at the fracture line rather than shear force on the hardware.

• Two-Flat Anti-Rotation Design: The lateral end of the screw features two machined flats that engage with the side plate barrel. This prevents the lag screw (and the attached femoral head) from rotating, ensuring the fracture remains anatomically aligned.

• 316L Surgical Steel Integrity: Forged from vacuum-melted stainless steel, the 280.25 offers the high fatigue strength necessary to support the cyclic loads of a walking patient during the 3–6 month healing window.

Applications

• Intertrochanteric Fractures: The most common use; securing the femoral head to the femoral shaft using a DHS plate.

• Subtrochanteric Fractures: Used in high-stress areas of the proximal femur.

• Distal Femur Fractures: Used with a DCS (Dynamic Condylar Screw) plate to stabilize supra-condylar and intercondylar fractures of the knee.

• Basilar Neck Fractures: Providing stable fixation for fractures at the base of the femoral neck.

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 clinical 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.

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

Shipping & Handling

• Secure Logistics: Shipped in a reinforced container to ensure the 125mm shaft remains perfectly straight and the 12.7mm threads remain pristine.

• Fast Dispatch: Ships within 1 business day.