Synthes 421.320 1.3mm titanium extended H-plate right orthopedic hardware

Synthes 1.3mm Titanium Extended H-Plate | Right | 19mm | 421.320

The Synthes 421.320 is a high-precision internal fixation implant engineered for the stabilization of complex fractures in the most delicate bony structures. Featuring a specialized Extended H-shape and a Right-handed orientation, this plate is specifically designed to provide stable anchorage across comminuted fracture lines where a standard straight plate would lack sufficient points of contact.

As part of the Synthes 1.3mm Modular Hand System, this 19mm length plate features 8 holes strategically placed to allow for divergent screw placement. This configuration is ideal for bridging metaphyseal fractures or stabilizing small bone fragments in the phalanges and midface.

Key Specifications

• Manufacturer: Synthes (DePuy Synthes)

• Model / REF: 421.320

• Material: Titanium (Ti)

• System Size: 1.3 mm Modular Micro System

• Plate Type: Extended H-Plate

• Orientation: Right Version

• Hole Count: 8 Holes

• Overall Length: 19 mm

• Plate Thickness: 1.3 mm

• Quantity: 1 Each (Individually Packaged)

Technical & Clinical Advantages

• Multi-Planar Stability: The "H" geometry allows for screw fixation in multiple planes. By anchoring fragments on both the medial and lateral aspects of the bone shaft, the plate provides superior resistance to rotational and torsional forces compared to linear plates.

• Titanium Biocompatibility: Commercially pure titanium promotes excellent osseointegration and minimizes the risk of inflammatory soft-tissue response. Its lightweight nature is critical in micro-fixation where excess hardware mass can impede functional recovery or tendon gliding.

• Extended Reach: The "Extended" design provides a larger footprint, allowing the surgeon to capture fragments further from the primary fracture site. This is particularly useful in comminuted "shatter" fractures where bone quality may be compromised near the injury.

• Anatomical Orientation (Right): Specifically contoured for right-sided anatomy, ensuring a more precise fit and reducing the need for aggressive intraoperative bending, which preserves the structural integrity of the titanium.

• Ultra-Low Profile: At 1.3mm thickness, the plate is designed to sit flush against the bone. This is essential in the hand and face, where minimal soft-tissue coverage makes hardware palpability a primary post-operative concern.

Applications

• Hand Surgery: Fixation of complex phalangeal head and metacarpal fractures.

• Craniomaxillofacial (CMF): Stabilization of midface, orbital rim, and mandibular fractures.

• Reconstructive Micro-Surgery: Anchoring small bone grafts or stabilizing complex osteotomies in the forefoot or hand.

• Arthrodesis: Providing stable fixation for joint fusions in the digits.

Condition & Quality Assurance

• Status: NEW — Factory Sealed.

• Integrity: This implant is unused and maintains its original material integrity. The plate edges are factory-smooth to prevent soft-tissue irritation or tendon snagging.

• Sterilization Note: This device is intended to be STERILIZED PRIOR TO USE. It must be properly cleaned and sterilized (typically via steam autoclave) in accordance with validated hospital protocols and Synthes’ Instructions for Use (IFU) prior to clinical implantation in 2026.

• Professional Standards: With over 25 years of experience in surgical hardware, Primis Medical ensures all titanium micro-hardware is stored in climate-controlled environments to preserve its structural and chemical properties.

Shipping & Handling

• Secure Logistics: Shipped in a reinforced outer box to ensure the delicate 1.3mm plate geometry and factory-sealed packaging remain pristine.

• Fast Dispatch: Ships within 1 business day.