Synthes Conical Extraction Screw | 7.5" Length | 387.34

The Synthes 387.34 is a specialized surgical retrieval instrument engineered for the difficult removal of 7.3mm cannulated screws. It is an essential component of the Synthes Screw Removal Set, specifically designed for "salvage" scenarios where a screw head is stripped, damaged, or broken, rendering standard hexagonal drivers ineffective.

Utilizing a reverse-thread conical geometry, this instrument is designed to be threaded directly into the internal cannulation of the stubborn implant. As the extraction screw is turned counter-clockwise, it "bites" into the inner walls of the cannulated screw, creating a high-friction mechanical bond that allows the surgeon to back out the implant as a single unit.

Key Specifications

• Manufacturer: Synthes (DePuy Synthes)

• Model / REF: 387.34

• Application: Removal of 7.3mm Cannulated Screws

• Overall Length: 7.5 inches (~190 mm)

• Material: Hardened Surgical-Grade Stainless Steel

• Geometry: Conical / Tapered Reverse Threads

• Compatibility: Small Universal Chuck / T-Handle Drivers

• Quantity: 1 Each

Technical & Clinical Advantages

• Conical Engagement: The tapered tip allows the extraction screw to wedge itself securely into the proximal end of the screw's cannulation. This ensures that even if the external drive recess (hex or StarDrive) is completely obliterated, the internal structure of the screw can still be used for retrieval.

• Extended Surgical Reach: The 7.5-inch length is specifically calibrated for deep anatomical corridors, such as those encountered in femoral neck or subtrochanteric fracture revisions. It provides the necessary clearance to operate safely outside the soft-tissue envelope.

• High Torsional Strength: Forged from cold-worked, hardened stainless steel, the 387.34 is designed to withstand the significant rotational forces required to break the "cold-weld" or osseointegration often found in long-term implants.

• Minimally Invasive Salvage: By utilizing the existing cannulation for extraction, the surgeon can avoid the need for aggressive trepanning or "hollow reaming" around the screw, thereby preserving as much healthy bone stock as possible during revision.

• System Integration: Features a standard shank compatible with the Synthes Small Universal Chuck, allowing for easy attachment to T-handles or power equipment for controlled, high-torque extraction.

Applications

• Hardware Removal: Retrieval of 7.3mm cannulated screws from the femoral neck, head, or trochanteric region.

• Revision Arthroplasty: Removal of broken or jammed screws from acetabular components or femoral stems.

• Trauma Revision: Salvaging stripped screws in large fragment plates where the screw cannulation remains patent.

• Broken Screw Retrieval: Engaging the remaining shaft of a cannulated screw that has snapped below the level of the cortex.

Condition & Quality Assurance

• Status: NEW — Factory Sealed.

• Integrity: This instrument is securely packaged within its original manufacturer's packaging. Both inner and outer seals are intact, ensuring the factory-sharp reverse threads and structural integrity are preserved for clinical use in 2026.

• Sterilization Note: While provided in its original packaging, this instrument is typically NON-STERILE. It MUST be thoroughly cleaned and sterilized (standard steam autoclave) according to hospital protocols and Synthes’ Instructions for Use (IFU) prior to use.

• Professional Standards: With over 25 years of experience in orthopedic logistics, Primis Medical ensures all surgical instruments are handled to maintain their mechanical precision and edge sharpness.

Shipping & Handling

• Secure Logistics: Shipped in a rigid, protective container to ensure the 7.5-inch shaft remains perfectly straight and the tapered threads are protected.

• Fast Dispatch: Ships within 1 business day.