• Fix bearing knee system is to provide sufficient articular surface and proper patella tracking as well as rotational freedom to accommodate deep knee flexion up to 145 degree;
• 12 Femoral sizes and 13 tibial sizes provide the best fitting combination;
• Ingenuity curvature design makes sure that any sizes of femoral condylar and tibial insert matches with each other;
• Deep and extended patella groove improves the patella trackability;
• Bolt-locking mechanism gives loosening zero chance.