NexGen® Complete Knee Solution Legacy® Knee Constrained Condylar Knee (LCCK)

The NexGen Legacy LCCK Femoral Component is intended for patients who, in the surgeon's judgement, require additional prosthetic stabilization due to inadequate mediolateral, anteroposterior and varus/valgus ligament function, and require augmentation and/or stem extensions due to inadequate bone stock. The NexGen LCCK is available with a non-coated fixation surface. This device is for cemented use only.

Prosthetic Constraint

For patients who lack functional collateral ligaments or whose knees cannot be stabilized by the usual soft tissue releases, the LCCK features an elevated tibial spine and deeper femoral intercondylar box. A close fit between the spine and box provides stability as the mechanical roll back is induced, inhibiting posterior subluxation, limiting varus/valgus movement to +1.25 degrees and internal/external rotation to +2 degrees. This design accommodates a theoretical range of motion in excess of 120 degrees.

Distinctive Net-Shape Compression-Molded Polyethylene

Micro-Finish™ Surface Finish smoothness and reproducible dimensional consistency result from this manufacturing process. Polyethylene with no added calcium stearate, gamma irradiated in an inert nitrogen environment, helps to minimize oxidation and maintain the material's durability on abrasion resistance.

Modular Femoral® Tibial Augments

For patients with inadequate bone stock, tibial and femoral augments offer true patient specificity. Tibial: third-, half-, and full wedge augments or 5 and 10mm blocks. Femoral: posterior, distal, posterior/distal, and anterior augments. Augments are designed for either screw or cement fixation (Anterior augments-cement fixation only).

Stem Extensions

Interchangeable between all stemmable NexGen Femoral and Tibial Components, straight and offset stem extensions allow the surgeon to optimize canal fill and component positioning.

Offset Stem

For patients whose canal is not centered relative to the distal femur or proximal tibial surface, the patented offset design allows the component to be positioned 4.5mm away from the center of the canal in any direction. This flexibility provides for a full 360 degrees of orientation for improved bone coverage, and allows the surgeon to optimize implant position.