Synthes 240.019 3.5mm/4.5mm Washer Orthopedic Surgical Instrument

Synthes Orthopedic Washer | 3.5mm / 4.5mm Compatibility | 7.0mm Outer Diameter | 219.98 / 240.019

The Synthes 240.019 (often cross-referenced with 219.98) is a precision-engineered surgical washer designed to enhance the stability of internal fixation constructs. Forged from high-grade 316L stainless steel, this washer is compatible with both 3.5mm and 4.5mm cortex or cancellous screws. Its primary mechanical function is to increase the surface area of the screw head, preventing the head from "sinking" into thin or osteoporotic cortex during compression.

By distributing the axial load across a broader area of the bone surface, this washer reduces the risk of local bone necrosis and secondary loss of fixation, making it a critical component for lag-screw techniques and fragment stabilization.

Key Specifications

• Manufacturer: Synthes (DePuy Synthes)

• Model / REF: 240.019 / 219.98

• Material: 316L Stainless Steel

• Internal Diameter: Compatible with 3.5mm and 4.5mm screw shafts

• Outer Diameter: 7.0 mm

• Profile: Low-profile, contoured edges

• Quantity: Individually Packaged, Sterile

Technical & Clinical Advantages

• Optimized Load Distribution: The 7.0mm outer diameter significantly expands the footprint of the screw head. This is essential when applying lag-screw compression in metaphyseal bone or in patients with compromised bone density, where the screw head might otherwise "pull through" the cortex.

• Cortical Integrity Preservation: By preventing the screw head from penetrating the outer table of the bone, the washer maintains the structural integrity of the fragment, ensuring that the intended compressive forces are translated into inter-fragmentary stability.

• Low-Profile Contouring: The washer features a slim vertical profile and radiused edges. This design minimizes the total hardware "bulk" under the skin, reducing the likelihood of soft-tissue irritation or bursa formation, especially in subcutaneous areas like the medial malleolus or olecranon.

• Universal Small-Fragment Compatibility: The internal diameter is precisely calibrated to accept the neck of both 3.5mm and 4.5mm screws, allowing it to be used interchangeably across several Synthes sets, including the Small Fragment and Basic Fragment systems.

• 316L Stainless Steel Biocompatibility: Cold-worked to ensure high fatigue resistance, the material is biologically inert and designed for long-term implantation.

Applications

• Lag-Screw Fixation: Enhancing compression in isolated inter-fragmentary screws for spiral or oblique fractures.

• Osteoporotic Bone Stabilization: Providing a "buffer" to prevent hardware subsidence in low-density bone.

• Ligament/Tendon Reattachment: Used in conjunction with a screw to anchor soft tissue or bony avulsions (e.g., medial collateral ligament repairs).

• Pediatric Orthopedics: Spanning wider areas of the thin pediatric cortex during fracture stabilization.

Condition & Quality Assurance

• Status: NEW — Factory Sealed & Sterile.

• Integrity: This implant is securely packaged within its original manufacturer's sterile peel-pouch. The packaging is intact, ensuring the product's sterility, material integrity, and full lot traceability for clinical implantation.

• Professional Standards: With over 25 years of experience in orthopedic technology, Primis Medical ensures all Synthes implants are stored in climate-controlled environments to maintain the structural and sterile integrity of the hardware.

Shipping & Handling

• Secure Logistics: Shipped in protective packaging to ensure the sterile barrier is not compromised and the washer's polished surface remains pristine.

• Fast Dispatch: Ships within 1 business day.