Our 4.0mm Cancellous Screw is a high-precision orthopedic implant designed specifically for fracture fixation in metaphyseal and epiphyseal bone zones. Featuring a deep, widely spaced thread profile, this screw maximizes surface area contact to deliver exceptional grip and pull-out resistance within soft, porous cancellous bone.
The partially threaded design allows the unthreaded shank to glide smoothly through the near bone fragment, creating a powerful lag effect that draws bone fragments tightly together for rigid interfragmentary compression. Equipped with a low-profile rounded head and a robust internal hexagonal drive, it ensures efficient torque transmission while minimizing post-operative soft tissue irritation.
Key Features & Benefits
-
Deep Cancellous Thread Profile: Engineered with sharp, wide-pitch threads that cut cleanly into cancellous bone structures, ensuring optimal stability.
-
Interfragmentary Compression: The partially threaded configuration creates an inherent lag screw mechanism, pulling fracture lines tightly together to accelerate bone healing.
-
High-Torque Hexagonal Drive: A deep, precision-machined internal hex socket eliminates driver slippage (cam-out) and guarantees controlled insertion.
-
Low-Profile Cruciate/Round Head: The smooth, domed head sits flush against bone plates or anatomical surfaces, preventing soft tissue friction and patient discomfort.
-
Biocompatible Engineering: Crafted from medical-grade Titanium Alloy or Stainless Steel to offer superb fatigue resistance and total biological compatibility.
Technical Specifications
| Feature | Specification |
| Screw Diameter | 4.0mm |
| Drive Type | Hexagonal (Hex) Socket |
| Thread Configuration | Partially Threaded (Lag screw function) |
| Thread Type | Cancellous (Deep profile, large pitch) |
| Material Options | Titanium Alloy (Ti-6Al-4V) / Medical Grade Stainless Steel (316L) |
| Length Range | Available in comprehensive surgical lengths (e.g., 10mm to 60mm) |
| Sterilization | Supplied Non-Sterile (Autoclavable) |
Clinical Indications
The 4.0mm Cancellous Screw system is highly indicated for:
-
Fixation of small bone fragments in metaphyseal and epiphyseal areas.
-
Fractures of the ankle (malleolar fractures), wrist, and foot bones.
-
Condylar and tibial plateau fracture management.
-
Securing small fragment orthopedic compression plates.





Reviews
There are no reviews yet.