NexGen CR

Product Description

NexGen® Complete Knee Solution Cruciate Retaining (CR)

The NexGen CR Femoral Component is intended for patients who, in the physician’s judgement, have good bone stock and whose ligaments provide adequate mediolateral, anteroposterior, and varus/valgus stability. The NexGen CR Femoral Component offers true physician choice and patient specificity with left and right configurations in up to eight sizes, covering most indications. Options include porous fiber metal, PMMA precoat, and non-coated versions. All femoral components are for cemented use only.

Anterior Flange Thickness

The minimized width and thickness of the anterior femoral flange helps to relieve tension on the extensor mechanism and restore normal joint function.

Distinctive Zimaloy® Cobalt-Chromium-Molybdenum Alloy

Femoral components are made from Zimaloy alloy, a time-tested material known for excellent wear characteristics and corrosion resistance. 1

Different Radii of Curvature in the Sagittal Plane

Asymmetric femoral radii (the lateral condyle radius is larger than the medial) aid natural rotation/rollback, working in concert with the soft tissues.

CR Articular Surface Options

The surfaces are available in three styles; standard, anterior constrained (AC) for enhanced A/P stability, and anatomically rotated (AR) with 6 degrees of external rotation built into the proximal surface.

Tibial Options

Stemmed components are available with porous fiber metal, precoat, and non-coated surface versions. All tibial components are for cemented use only.

Stemmed Tibial Base Plate

The NexGen stem base is designed to resist base plate lift-off due to tilting that can results from poor bone stock.

Please refer to the package inserts for complete product information, including contraindications, warnings, precautions, and adverse effects.

References

  1. Beckman a. Design and manufacturing solutions to UHMWPE wear in TKA. Zimmer Technical Paper, 1997.
  2. Walker PS, Greene D, Reilly D, et al. Fixation of tibial components of knee prostheses. J Bone Joint Surg. 1981;63-A:258-267.

 

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