Optetrak® Constrained Condylar

The Right Track

The Optetrak® Constrained Condylar (CC) knee system addresses the art of revision with the science of precision. Its instrumentation allows the surgeon to reproduce the joint line. If augmentation is required, a wide range of femoral and tibial solutions are available. The CC’s unique "box" design provides stability with excellent varus/valgus constraint. Restoration, flexibility, stability and simplicity—that’s Optetrak‘s formula for revision precision.

1. Constrained condylar femoral components, in conjunction with constrained condylar inserts, restore stability to the joint. The constrained condylar component offers a 2-, 5- or 7-degree valgus angle to accommodate a wide range of patients. Debulked anterior femoral flange reduces tension in lateral retinaculum and incidence of lateral release. Femoral augments are mechanically attached to the distal and/or posterior surface of the component in 5mm increments up to 30mm.
2. Femoral/tibial articular congruency of 0.96 reduces contact stress, improving polyethylene wear.
   
3. Enhanced spine and cam mechanism controls roll-back and minimizes subluxation. Highly constrained insert limits rotational and varus/valgus freedom of femoral component in order to restore stability to the joint.
4. Deep, extended patellar groove reduces compressive stress and shear on patellar component during high flexion. Wide patellar groove (superior region only) provides less constraint to allow for excellent patellar tracking, and rounded corners reduce medial side overhang. Spherical, all-polyethylene patellar component allows for interchangeability and high congruence throughout range of motion. Available in either three-peg or single-peg fixation options.
   
5. Tibial trays are modular with a cemented trapezoidal stem. They will accept stems and/or augments for additional stability or to fill bone voids. Tibial up-sizing/down-sizing capability allows optimal bone coverage while maintaining the same excellent congruency regardless of sizing combinations. The femoral component and the polyethylene insert are a matched pair with three interchangeable tibial trays to choose from for each femoral size. Tibial augments are mechanically attached to the trapezoidal tray and are available in 5mm, 8mm and 11mm thicknesses. One-half as well as bone-sparing one-third options can replace tibial deficiencies.
6. An offset tibial tray option allows a more proximal shift when compared to a "dog leg" type stem.
7. Tibial insert locking mechanism includes three design features that keep polyethylene inserts in place, minimizing the potential for backside wear. A continuous peripheral rim around the tibial tray, posterior feet that couple with precision undercuts in the tray and a central mushroom provide a barrier to insert motion and prevent lift-off. The constrained condylar polyethylene insert has a spine stiffener screw to strengthen the spine and act as an additional locking mechanism.
8. Stem extensions are common to both the femoral and tibial components and can be cemented or press-fit. Multiple stem diameters and lengths offer solutions to the most difficult revision surgeries.

Optetrak® is a registered trademark of Exactech, Inc.