Bone Artificial Knee Joint

Revised Knee Joint Replacement Implant for Orthopedic Surgery

The system is a modular reconstructive platform engineered for the mechanical challenges of secondary arthroplasty, specifically addressing prior implant failure and significant bone loss. Fabricated from medical-grade cobalt-chromium-molybdenum and titanium alloys, the assembly provides the fatigue strength and corrosion resistance required for long-term joint restoration.

Our revision knee system is engineered for the mechanical challenges of secondary arthroplasty, specifically addressing cases of prior implant failure, segmental bone loss, and joint instability. By combining medical-grade CoCrMo and titanium alloys with a modular architecture-including 30mm–50mm extension stems-the system allows surgeons to bypass compromised bone and secure rigid fixation in healthy cortical tissue. This focus on biomechanical restoration and material durability ensures reliable functional recovery for patients with complex anatomical variations.

Fabricated from medical-grade CoCrMo and titanium alloys, this implant is engineered for the fatigue strength and corrosion resistance required in complex joint reconstruction. To ensure secondary stability, the components feature a 600μm plasma-sprayed coating, which facilitates rapid osteointegration and minimizes micromotion at the bone-implant interface. Every modular element is produced via high-precision CNC machining to meet strict tolerances and is verified through testing protocols compliant with ISO 13485 and ASTM quality standards.

The modular structure is the cornerstone of this system, enabling surgeons to tackle diverse bone defects and instability issues:

• Tibial and femoral extensions: Available in 30mm–50mm lengths, these rods bypass weakened bone and secure fixation in healthy tissue.
• Cemented and cementless options: Choose between cemented stems for immediate stability or cementless designs with porous coatings for long-term fixation.
• Interchangeable liners: Options include polyethylene (PE) and highly cross-linked polyethylene (XPE) with varying thicknesses (9mm–18mm) to optimize joint alignment.

Key features ensure durability and functionality:

• Anti-rotation locking mechanism: Prevents liner displacement and reduces polyethylene wear.
• Post-cam articulation: Mimics natural knee motion, minimizing stress on the implant-bone interface.
• High-flex design: Supports deep flexion (up to 155°) while maintaining contact stability, ideal for active patients.

This revised knee replacement system excels in addressing complex scenarios:

• Failed primary implants: Corrects loosening, infection, or malalignment.
• Bone loss: Uses modular (5mm–10mm) and titanium mesh to reconstruct defects.
• Revision after trauma: Restores function in cases of periprosthetic fractures.
• Rigid fixation: Cemented stems with fluted designs enhance rotational stability in osteoporotic bone.

• Sizes: Femoral components (1–10, half-sizes available), tibial trays (1–8), liners (9mm–18mm).
• Materials: Cobalt-chromium-molybdenum alloy (femoral/tibial components), titanium alloy (stems), polyethylene/XPE (liners).
• Coatings: Plasma spray Ti for cementless fixation, hydroxyapatite (HA) for accelerated bone growth.

With a proven track record in over 2,000 revision surgeries, this system delivers:
97% five-year survival rate in clinical trials.
Reduced surgical time via user-friendly modular components.
Customizable solutions for challenging anatomies.
Transform revision outcomes with a system that combines engineering excellence, clinical versatility, and patient-centric design. Perfect for orthopedic surgeons seeking reliable, high-performance solutions for even the most complex knee revision cases.

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