4.5MM Tapered Threaded Pins | Cortical Shaft Tapered 4.5-3.5MM

Accordion Hover Style
+ Description

This pin features a tapered shaft that transitions from a 4.5mm diameter at the threaded end to 3.5mm at the opposite end. The design facilitates gradual insertion into cortical bone, reducing the risk of bone splitting and ensuring a snug fit. The threads are engineered to provide optimal grip within the bone, enhancing stability during the healing process.

Material Composition:
These pins are typically manufactured from:

Medical-Grade Stainless Steel (e.g., AISI 316L): Offers excellent strength, corrosion resistance, and biocompatibility.

Titanium Alloys (e.g., Ti-6Al-4V): Provide superior biocompatibility, reduced weight, and excellent corrosion resistance, making them ideal for long-term implantation.

The choice of material depends on the specific clinical requirements and surgeon preference.

Accordion Hover Style with Bullets
+ Indications
  • External Fixation Systems: Used as fixation elements in external fixators (monolateral or circular like Ilizarov frames). The tapered design provides strong anchorage in cortical bone, especially in pediatric or osteoporotic patients.
  • Enhanced Cortical Purchase: The tapered shaft improves thread-to-bone engagement—Ø4.5 mm threads anchor in the outer cortex, while the Ø3.5 mm shaft reduces stress at the bone entry point, helping avoid microfractures or cracking.
  • Fracture Stabilization: Commonly used in tibial, femoral, humeral, or radius/ulna fractures where external fixation is needed. Provides temporary or definitive stabilization for open fractures, especially when internal fixation is contraindicated.
  • Deformity Correction: Used with hexapod or ring fixators (e.g., Taylor Spatial Frame) in limb lengthening or angular correction procedures. Ensures stable and controlled fixation during gradual adjustments.
  • Pediatric Orthopedic Applications: Suitable for children due to smaller size and lower bone trauma risk. Tapering helps minimize pin tract infections and promotes easier insertion with better cortical grip.
Accordion Hover Style with Bullets
+ Key Features
  • Tapered Shaft Design: The gradual reduction from 4.5 mm to 3.5 mm allows for controlled insertion and improved stress distribution within the bone.
  • Enhanced Bone Purchase: The threaded section ensures strong engagement with cortical bone, providing reliable fixation.
  • Reduced Insertion Trauma: The tapered design minimizes the force required for insertion, decreasing the likelihood of bone damage.
  • Versatile Length Options: Available in lengths of 100 mm and 120 mm, accommodating various anatomical and procedural requirements.
  • Precision Engineering: Manufactured to exacting standards to ensure consistency and reliability in surgical applications.

Product Ordering

9212 TI Table
CAT NO.
8078EF01