CytroFIX® Intramedullary Lengthening Nail (Magnetic)

A state-of-the-art magnetic nail system designed for precise and controlled limb lengthening, offering minimally invasive adjustment, enhanced patient comfort, and reliable outcomes in orthopedic procedures.

High-Purity Titanium Constructs for Controlled Limb Lengthening

The CytroFIX® Intramedullary Lengthening Nail (Magnetic) by Cytronics (an INVAMED orthopedic division) is specifically engineered for limb-lengthening procedures in the femur (and, in some cases, the tibia). By integrating magnetic gear technology within a high-purity titanium intramedullary design, surgeons can achieve controlled, noninvasive post-operative adjustments, minimizing patient discomfort and simplifying limb distraction protocols.

Magnetic Lengthening Mechanism
  • Features an internal magnetic gear system activated by an external remote controller.
  • Surgeons and patients can adjust distraction increments without invasive manipulation, fostering a precise and comfortable lengthening process.
  • Fabricated from Ti-6Al-4V ELI or equivalent high-grade titanium, ensuring excellent biocompatibility and strength-to-weight ratio.
  • Minimizes the risk of allergic reactions and supports a stable environment for regenerating bone in distraction segments.
  • The nail is placed within the medullary canal, providing robust mechanical support while the regenerate bone forms during distraction osteogenesis.
  • Offers alignment benefits similar to conventional intramedullary nails, with added lengthening functionality.
  • External remote controller adjusts nail length in small increments (e.g., ~0.25 mm per activation), enabling surgeons to tailor distraction rates to patient-specific protocols and healing responses.
  • Reduced risk of over-distraction or inconsistent gap formation, improving outcomes in limb-length discrepancies, post-traumatic deficits, and certain congenital deformities.
  • Indicated for limb-lengthening procedures in cases of congenital short stature, post-traumatic malunion, or nonunion with length deficits.
  • Potentially suitable for femoral and/or tibial applications, depending on surgeon preference, patient anatomy, and the device’s length/diameter range.
  • Active local or systemic infections, inadequate canal diameter, or severely compromised bone stock preventing stable fixation.
  • Certain comorbidities (e.g., severe osteoporosis, vascular insufficiency, neuromuscular disorders) may require alternative approaches or caution.