Knee

TRICCC

THE SURGICAL TECHNIQUE

The total knee prosthesis triccc is a mature prosthesis implanted in patients since 1996.
The implant`s design and the surgical technique called “Differential Ligament us Tension” have proved good results. It is an easy and reproducible technique thanks to an efficient ins-trumentation.

The technique permits to reach

A perfect stability in extension and flexion
An extension gap equal to the flexion gap
A proper patellar tracking, perfect for the femoral placement
An accurate adjustment of the ligament us balance
Minima Bone cuts.

HIGH CONFORMITY

The use of highly conformal articular surfaces, in both sagittal and frontal planes, combined with an additional central bearing surface enable to achieve contact surface on the UHMWPE bearing up to 1246 mm2 from extension to 800 of knee flexion then to 1145 at 900 and 745 mm2 at 1200 of flexion.

MULTI-DIRECTIONAL MOBILITY

Rotation
The rotation of the bearing is only limited by the soft-tissues.
As in the normal knee joint, rotational freedom gradually increases from extension to flexion.
Antero-posterior mobility
Pure sliding motion occurs between the femur and the bearing while anterior-posterior drowed-type displacement of the bearing substitutes for the rolling component of the femur
relative to the tibia.
Medio-lateral mobility
Limited medio-lateral mobility facilitates lift-off movements between the femur and the bearing and corrects for possible small errors in implant medio-lateral positioning.
These rotational and translational characteristics of the bearing allow for constant adaptation of the knee joint to the interacting muscles and ligament us structures as well as to the predetermined motion of the implant, thereby facilitating natural knee motion like screw-home mechanism and roll-back movement.