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GKS ONE Unicondylar

GKS ONE Unicondylar

Category: Permedica Orthopedics

INTENDED PURPOSE:

GKS ONE is a unicondylar knee prosthesis for use in Unicondylar Knee Replacement procedures. Indicated for primary unicondylar knee arthroplasties in cases of advanced degree osteo-cartilaginous degeneration limited to a single condyle (medial or lateral) of the knee, where complete functional stability of the ligaments is provided. The axial deviations (varus/valgus) involving the joint should not be hypercorregible and the “drawer test” should be negative, thus excluding ligamentous laxities.

Fixation of the components to the bone can be achieved by using bone cement or not, depending upon the version utilized.


STERILIZATION:

            Method: Ethylene Oxyde (EtO) or irradiation (Beta/Gamma rays - minimum dose 25 kGy) or Vaporized Hydrogen Peroxide (VH2O2).

            Validity: 5 years (Beta sterilized products)- 10 years (EtO/Gamma/VH2O2 sterilized products).



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FEMORAL COMPONENT



4 Femoral sizes

Made of Cobalt Chrome alloy, it is available in cemented and cementless HaX-Pore® coated option. Also with BIOLOY® ultrahard coating.

HaX-Pore

porous coated surface with 250μm of pure Titanium and 60μm of Hydroxyapatite, applied with plasmaspray technique guarantees optimal primary stability and promote osteoblasts colonization for an optimal biological fixation.





The curvature of the femoral design is accomplished via two weight bearing arches with distinct centers: a wide ranged anterior arch, and a small ranged posterior arch.

Primary stability relies upon anchorage into the bone effectuated by a central cylindrical peg and a sagittal wing. The bone contact surface is elaborated in order to obtain uniform bone cement distribution and better positioning.




Metal Back TIBIA


PRESS-FIT

6 Tibial sizes

The Metal-Backed Tibial Component is available only in cementless version (cemented upon request). It consist in a Titanium alloy hemiplate where the UHMWPE liner lodges by snap-in insertion.
The bone contact surface presents HaX-Pore® coating and 4 crossed wings displaced around the hole for the stabilizing screw. The U H M W P E joint liners are available in 4 thicknesses.


All Poly TIBIA


CEMENTED

6 Tibial sizes

The "ALL-POLY" tibial component has a completely flat surface upon which the femoral component can freely move controlled by the ligaments apparatus. It is available in 5 thicknesses in UHMWPE.

The inferior surface of the tibial plate has a special grooving to improve the cement grip and the stability of the implant.