Synthes 294.786 5.0mm Self-drilling Schanz Screw 80mm Thread Length /200mm

Synthes 5.0mm Self-Drilling Schanz Screw | 80mm Thread | 200mm Length | 294.786

The Synthes 294.786 is a high-performance percutaneous pin designed for the construction of Large External Fixation frames. As a 5.0mm diameter Schanz screw with an extended 200mm length, it provides the structural rigidity required to stabilize major long-bone fractures in the femur and tibia.

The Self-Drilling tip is a critical advancement in trauma surgery. It features a sharp, trocar-style cutting geometry that allows the screw to be inserted directly into the bone using a power driver. This eliminates the need for a separate pre-drilling step, significantly reducing operative time and minimizing the risk of thermal necrosis by ensuring a precise, high-tolerance fit between the screw and the cortex.

Key Specifications

• Manufacturer: Synthes (DePuy Synthes)

• Model / REF: 294.786

• Material: 316L Stainless Steel (High-Strength Surgical Grade)

• Screw Diameter: 5.0 mm

• Thread Length: 80 mm (Extended Reach)

• Total Length: 200 mm

• Tip Profile: Self-Drilling / Self-Tapping

• Compatibility: Large Fragment External Fixator Clamps (11.0mm Rod Systems)

• Sterility: Non-Sterile (Requires validated steam sterilization prior to use)

Technical & Clinical Advantages

• Extended 80mm Thread: The unusually long 80mm threaded section is specifically designed for high-volume metaphyseal bone or for "oblique" insertion techniques. It ensures maximum thread-to-bone contact across wide bone diameters, providing superior pull-out resistance.

• Self-Drilling Efficiency: The integrated drill tip allows for rapid bicortical engagement. This is essential in "damage control" orthopedics, where quick stabilization of unstable, life-threatening fractures is paramount.

• Radial Preload Stabilization: During insertion, the 5.0mm Schanz screw creates a "radial preload." This mechanical tension ensures a tight, vibration-resistant interface with the bone, which is the primary factor in preventing pin-tract loosening over long-term treatment.

• High Fatigue Resistance: Manufactured from cold-worked 316L stainless steel, the 294.786 is engineered to withstand the massive bending moments and cyclic loads encountered in weight-bearing lower-extremity trauma.

• Polished Proximal Shaft: The non-threaded portion of the 200mm shank is precision-polished to minimize soft-tissue irritation and friction at the skin-entry site, aiding in post-operative pin-site care.

Applications

• Damage Control Orthopedics: Rapid stabilization of femoral and tibial shaft fractures in polytrauma scenarios.

• Pelvic Stabilization: Ideal for supra-acetabular pin placement in anterior pelvic external fixators where deep bony purchase (80mm thread) is required for stability.

• Large Fragment Trauma: Providing a stable spanning construct across complex, comminuted knee or ankle fractures.

• Segmental Stabilization: Use in bone transport or limb-lengthening frames where extended length and robust thread purchase are mandatory.

Condition & Quality Assurance

• Status: NEW — Original Manufacturer's Packaging.

• Integrity: This instrument is new. As a non-sterile implant, it must be inspected for thread integrity and processed through a validated sterilization cycle (typically steam autoclaving) in accordance with hospital protocols and Synthes IFU (Instructions for Use).

• Professional Standards: With over 25 years of experience in surgical hardware, Primis Medical ensures all external fixation components are maintained in optimal conditions to guarantee clinical reliability in 2026.

Shipping & Handling

• Secure Logistics: Shipped in reinforced, impact-resistant packaging to protect the threaded tip and the precision-ground self-drilling flutes.

• Fast Dispatch: Ships within 1 business day.