Knee Replacement System
An advanced implant solution crafted to restore knee function and alleviate pain caused by joint damage, featuring durable, biocompatible materials designed for long-term stability and improved patient mobility.
High-Purity Titanium Constructs for Total Knee Arthroplasty (TKA)
The CytroFIX® Knee Replacement System by Cytronics (an INVAMED orthopedic division) is designed to address a wide spectrum of knee pathologies, including osteoarthritis, rheumatoid arthritis, post-traumatic degeneration, and revision arthroplasty scenarios. Utilizing high-purity titanium components for optimal biocompatibility and corrosion resistance, this system combines state-of-the-art materials with an anatomically contoured design, aiming to restore functionality and reduce postoperative complications in total knee replacement (TKR).
Anatomically Inspired Design
- Femoral and tibial components are contoured to closely replicate native knee joint geometry.
- Facilitates efficient load distribution, promoting more natural kinematics and reduced stress on surrounding tissues.
High-Purity Titanium Construction
- Titanium alloy (e.g., Ti-6Al-4V ELI) in tibial trays or certain femoral components (where design permits) ensures excellent strength-to-weight ratio and superior corrosion resistance.
- Minimizes the risk of allergic reactions while enhancing bone integration, especially around the porous or press-fit surfaces.
Advanced Polyethylene Articulation
- UHMWPE (Ultra High Molecular Weight Polyethylene) or X-linked polyethylene inserts provide low wear and maintain stable joint articulation.
- Optimized tibial inserts reduce potential backside wear and assure long-term durability.
Modular Component Range
- Multiple femoral sizes (right and left), tibial baseplates, and polyethylene thicknesses accommodate patient-specific anatomy.
- Optional patella resurfacing implants (onlay or inlay) available for comprehensive joint restoration when clinically indicated.
Versatile Fixation Options
- Cemented: Polymethyl methacrylate (PMMA) fixation for secure, immediate stability.
- Cementless (Press-Fit): Porous or hydroxyapatite-coated surfaces promoting biological ingrowth.
- Hybrid Techniques: Combining cemented and cementless elements based on bone quality and surgeon preference.
Clinical Indications
- End-stage degenerative joint disease (e.g., osteoarthritis, rheumatoid arthritis), traumatic arthritis, or irreparable meniscal/ligament damage requiring TKA.
- Revision scenarios where prior implants have loosened or failed, provided sufficient bone stock for stable fixation.
Contraindications
- Active infection in or around the knee joint, severe untreated osteoporosis, or systemic conditions that preclude elective joint replacement.
- Patients lacking the ligamentous structures or neuromuscular control needed for stable TKA, unless compensated by a constrained or hinged design.
