CytroFix 4.5 Cortical Screws / 5.0 Locking Cortical Screws

High-Purity Titanium Screws for Large-Fragment Orthopedic Fixation

CytroFix 4.5 Cortical Screws and CytroFix 5.0 Locking Cortical Screws by Cytronics (an Invamed orthopedic brand) are engineered to meet large-fragment fixation demands in orthopedic surgery. Manufactured from high-purity titanium, these screws offer exceptional biocompatibility, corrosion resistance, and robust mechanical performance. From femoral shaft fractures to complex pelvic reconstructions, these screw options deliver secure anchorage that withstands substantial physiological loads, ensuring stable fracture healing and long-term patient outcomes.

High-Purity Titanium Alloy

Guarantees superior strength, lower risk of adverse tissue reactions, and excellent compatibility with plating systems across various anatomies.

  • 4.5 mm Cortical Screws: Designed for thicker cortical bone in load-bearing regions (e.g., distal femur, proximal tibia, humeral shaft).
  • 5.0 mm Locking Cortical Screws: Incorporate a specialized thread under the screw head for locked engagement with plates, essential in osteoporotic or multi-fragment situations demanding angular stability.

Delivers enhanced cortical purchase, reducing the risk of stripping or loosening, especially in high-load environments like the femur or pelvis.

Typically provided in hex or star-drive (T-20 or T-25, model-dependent), ensuring consistent torque application and minimized risk of cam-out.

Suitable for fracture fixation, arthrodeses, and reconstructive procedures in large bones such as the femur, tibia, humerus, and pelvis.

  • Active infection at or near the surgical site
  • Insufficient bone stock for screw thread engagement
  • Patient comorbidities preventing safe operative intervention