Front Threaded Pin Ø3.5MM x 4.0MM Shaft

25.Front Threaded Pin 3.5MM x 4.0MM Shaft.jpg A (1)
25.Front Threaded Pin 3.5MM x 4.0MM Shaft (1)
25.Front Threaded Pin 3.5MM x 4.0MM Shaft - Copy (1)
Accordion Hover Style
+ Description

A Front Threaded Pin with a Ø3.5mm thread diameter and a Ø4.0mm shaft is a precision-engineered orthopedic implant used in external fixation for bone stabilization, fracture management, and deformity correction. The pin is partially threaded at the distal end, allowing for secure engagement in bone while minimizing soft tissue trauma.

This pin features a stepped design—with a thinner threaded portion that transitions to a thicker smooth shaft—ensuring enhanced mechanical strength, optimal bone purchase, and tissue-friendly behavior.

Accordion Hover Style with Bullets
Indications
  • Fracture Stabilization (External Fixation): Stabilizes fractures in long bones like tibia, femur, radius, and humerus. Used in monolateral or circular external fixator systems. Ideal for open fractures, comminuted fractures, or high-energy trauma cases.
  • Temporary Fixation in Damage Control Orthopedics: Provides rapid skeletal stabilization in polytrauma patients. Helps maintain alignment until the patient is ready for definitive internal fixation.
  • Deformity Correction: Used in limb reconstruction systems (e.g., Ilizarov, Taylor Spatial Frame). Allows gradual correction of angular, rotational, or length deformities.
  • Limb Lengthening (Distraction Osteogenesis): Securely holds bone segments during controlled lengthening procedures. Provides stable anchorage to withstand mechanical stress during distraction.
  • Pediatric Orthopedics: Suitable for children and adolescents due to the moderate thread diameter. Minimizes soft tissue trauma and preserves bone integrity in smaller bones.
  • Pelvic and Joint Stabilization: Used for temporary or definitive pelvic fracture fixation. Helpful in stabilizing fractures near joints, where internal fixation is risky due to soft tissue damage.
  • Bone Transport / Segmental Bone Defect Management: Facilitates movement of bone segments to fill large defects (after trauma or infection). Common in procedures addressing infected non-unions or osteomyelitis.
  • Infection-Prone Situations: Used when internal implants are contraindicated, especially in infected or contaminated wounds.
Accordion Hover Style with Bullets
Key Features
    1. Thread Design – Ø3.5mm Front Thread
    Partial (distal) threading allows for precise cortical engagement.
    Designed for bicortical fixation, offering high pull-out strength.
    Fine-pitched threads optimize grip in dense cortical bone.
    Reduced insertion torque and better control during surgery.

    2. Shaft Diameter – Ø4.0mm
    Provides increased flexural strength and resistance to bending under load.
    Smooth shaft reduces friction against soft tissues.
    Step transition from thread to shaft creates a mechanical stop in the near cortex, improving primary stability.

    3. Tip Geometry
    Available with self-drilling and/or self-tapping options for quick, accurate insertion without pre-drilling.
    Sharp-cutting flute or chisel tip reduces surgical time.

    4. Surface Finish
    Polished shaft to minimize soft tissue irritation and reduce pin tract infection risk.
    Threaded region may be roughened or coated to enhance osteointegration.

    5. Drive Interface
    Typically features a hexagonal or square drive head for compatibility with standard instrumentation.
    Secure tool engagement prevents slippage during insertion.

    6. Radiolucency Compatibility
    Designed to be used with radiolucent frames (e.g., carbon fiber) for better post-op imaging clarity.

Product Ordering

9212 TI Table
CAT NO.
8079EF01