Synthes 281.84 150° DHS Plate-Short Barrel 4 Holes/78mm

Synthes 150° DHS Plate | Short Barrel | 4 Holes | 78mm | 281.84

The Synthes 281.84 is a specialized implant within the Dynamic Hip Screw (DHS) System, specifically engineered for the stabilization of intertrochanteric fractures and proximal femoral osteotomies. This 4-hole plate features a steep 150° neck-shaft angle combined with a short barrel configuration, offering a niche solution for patients with high-angle (valgus) femoral anatomy or those requiring a shorter lag screw trajectory.

The DHS system remains the biomechanical "gold standard" for internal hip fixation. It allows the femoral head fragment to slide along a lag screw (sold separately) within the plate's barrel. This controlled collapse converts physiological weight-bearing loads into beneficial interfragmentary compression, which is essential for promoting bone union.

Key Specifications

• Manufacturer: Synthes (DePuy Synthes)

• Model / REF: 281.84

• Material: 316L Surgical Stainless Steel

• Neck-Shaft Angle: 150° (High Valgus Alignment)

• Barrel Type: Short Barrel (25mm length)

• Hole Count: 4 Holes (DCP/LC-DCP profile)

• Overall Length: 78 mm

• Screw Compatibility: 4.5mm Cortex Screws (shaft) / DHS Lag Screw (barrel)

• Quantity: 1 Each

Technical & Clinical Advantages

• 150° High-Angle Alignment: The 150° angle is specifically utilized for patients with a naturally valgus femoral neck or in corrective procedures such as a valgus-producing osteotomy to treat femoral neck non-unions (pseudoarthrosis).

• Short Barrel Optimization: The 25mm short barrel is designed to accommodate shorter lag screws (typically 75mm or less) without the risk of the screw "bottoming out." This ensures the sliding mechanism remains active, which is critical for fracture impaction in smaller-stature patients.

• Controlled Dynamic Compression: The precision-honed barrel allows the DHS lag screw to slide freely, facilitating postoperative fracture impaction. This shifts the mechanical load from the implant to the bone, increasing stability in 2026 geriatric trauma protocols.

• High-Fatigue 316L Stainless Steel: Forged from vacuum-melted surgical steel, this plate provides the structural rigidity and fatigue resistance required to withstand cyclic loading during early mobilization.

• Low-Profile Plate Geometry: Featuring beveled edges and a tapered distal end, the 281.84 minimizes soft-tissue irritation and facilitates easier submuscular insertion, reducing surgical trauma.

Applications

• Intertrochanteric Fractures: Stabilization in patients with extreme valgus proximal femoral anatomy.

• Valgus Femoral Osteotomies: Correcting varus deformities or treating femoral neck non-unions by realigning the mechanical axis.

• Short-Neck Anatomy: Cases where a standard 38mm barrel would interfere with the lag screw threads or provide insufficient sliding room.

• Trauma Reconstruction: Providing a rigid lateral buttress for specific proximal femoral fracture patterns.

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.

• 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 150° barrel alignment and 78mm shaft remain perfectly within factory tolerances.

• Fast Dispatch: Ships within 1 business day.