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Orthopedic & Trauma SolutionsSeptember 13, 2023INVAMED Medical Affairs

CytroFIX Intramedullary Femoral Nail: Design Overview

CytroFIX Intramedullary Femoral Nail by INVAMED: a titanium IM nail engineered for femoral shaft and supracondylar fractures. See design features.

The CytroFIX Intramedullary Femoral Nail is an implant within INVAMED's orthopedic trauma portfolio, engineered to address femoral shaft and supracondylar fracture patterns. This overview summarizes the device's material composition, design intent, and general fixation concept for clinicians evaluating intramedullary femoral nail systems.

What Is the CytroFIX Intramedullary Femoral Nail?

The CytroFIX femoral nail is designed for insertion into the femoral medullary canal, where it provides central, load-sharing support across shaft and select supracondylar fracture patterns. The nail is manufactured from medical-grade titanium alloy (Ti-6Al-4V), a material widely used in orthopedic trauma implants for its combination of mechanical strength, corrosion resistance, and biocompatibility.

Device availability and regulatory status vary by country. Please contact INVAMED or your authorized local distributor for current regulatory information applicable to your region.

What Are the Key Design Features?

Design elements commonly associated with the CytroFIX femoral nail platform include:

  • Streamlined nail geometry — intended to facilitate controlled insertion through the femoral canal while minimizing additional trauma to surrounding tissue
  • Multiple locking screw options — proximal and distal locking holes allow the surgical team to select static or dynamic locking configurations depending on fracture pattern and desired load-sharing characteristics
  • Titanium alloy construction — chosen for its favorable strength-to-weight ratio and long-standing use in load-bearing orthopedic applications
  • Cannulated design — supports guidewire-assisted, minimally invasive insertion technique

What Fracture Patterns Does It Address?

The CytroFIX femoral nail is engineered to address a range of femoral shaft fractures, including comminuted and segmental patterns, as well as select supracondylar fractures near the distal femur, depending on the specific nail configuration and locking options selected. Fracture classification and surgical planning remain the responsibility of the treating surgeon, who determines candidacy based on imaging, fracture morphology, and patient-specific anatomical factors.

How Does the Locking Mechanism Work?

Locking screws are placed transversely through predrilled holes in the bone and corresponding holes in the nail, preventing rotational movement and controlling axial shortening at the fracture site. Static locking (screws placed at both ends) is typically used for unstable or comminuted fracture patterns, while dynamic locking (screws placed at only one end) may be selected in certain simple fracture patterns to allow controlled axial compression during healing. The choice between these configurations reflects individualized surgical judgment.

Frequently Asked Questions

What material is the CytroFIX femoral nail made from?

The device is manufactured from Ti-6Al-4V titanium alloy, a medical-grade material widely used in orthopedic trauma implants for its biocompatibility, strength, and corrosion resistance.

What sizes are available for the femoral nail?

INVAMED's femoral intramedullary nail platform is engineered across a diameter range of approximately 9–13 mm to accommodate variation in patient anatomy. Complete sizing charts and technical specifications are available through INVAMED's official product documentation.

Is the CytroFIX femoral nail suitable for all femur fractures?

No single implant is appropriate for every fracture pattern. Intramedullary nailing is generally most suited to shaft and select supracondylar fractures, while fractures closer to the hip or knee joint may require alternative fixation strategies. Fracture assessment and device selection are determined by the treating surgical team.

Related INVAMED Resources


Medical Disclaimer: This article is provided for general informational and educational purposes only and does not constitute medical advice, diagnosis, or treatment recommendation. It is not a substitute for consultation with a qualified healthcare professional. Product indications, availability, and regulatory status vary by country. Always refer to the official Instructions for Use (IFU) and consult a licensed physician for guidance specific to your situation. INVAMED devices are intended for use by trained healthcare professionals.

Reviewed by: INVAMED Medical Affairs

This content is prepared for educational purposes for healthcare professionals and does not constitute medical advice. Always consult clinical guidelines and product instructions for use.

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