Hinged knee prosthesis with condylar bearing

Details Hinged knee prosthesis with condylar bearing Hinged knee prosthesis with condylar bearing

A - Human Necessities

61

F

A61F 2/38 (2006.01)

Patent

CA 2163945

A femoral component with a femoral stabilizing implanted rod has condylar surfaces of different radii which mate with a thermoplastic bearing. A mating tibial platform is stabilized in the tibia with a rod, the bearing translating on the platform in the posterior-anterior directions in response to knee flexion and extension. The bearing bears the full extension load on congruent articulating contact regions with the condylar surfaces and lesser flexion loads via incongruent articulating contact. A hinge assembly is pinned to the femoral condylar component through a head having a depending shaft fixed to a thermoplastic tapered bearing axially floating and rotatably movable in a tibia platform component mating cavity. The head passes through the bearing and stops the bearing translations at extreme posterior and anterior positions. In a second embodiment, a projection on the tibial component mates in a recess in the bearing for controlling and limiting the amount of axial rotation of the femoral component relative to the tibial component as a function of the extent of flexion in a knee joint.

Affiliated with

Also associated with

Rating

Hinged knee prosthesis with condylar bearing does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hinged knee prosthesis with condylar bearing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hinged knee prosthesis with condylar bearing will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1346352