Products Knee Foundation Knee System

Foundation Knee System

Foundation® Total Knee System



  • The deepened patellar groove on the
    Foundation femoral component minimizes
    patellar advancement which has been
    shown to increase flexion and restore
    normal kinematics.3·7
  • Anatomic patellar groove promotes
    normal biomechanics.7
  • Groove depth increases at higher angles
    of flexion to provide increased resistance to
    patellar dislocation.5
  • The patello-femoral geometry of the
    Foundation Knee can resist lateral joint
    forces well beyond those seen in the
    physiological knee.


Solutions for Tibial

I. Minimize the Transfer of Shear Stresses
to the Underside of the Tibial Baseplate
The Foundation tibial-femoral geometry was
designed to allow the desired motion for a
prosthetic knee which includes 8mm of rollback
and +/-15° of rotation.6
II. Maximize Resistance to Shear Forces
The tibial stem design utilizes the strongest
bone in the proximal tibia to resist rotational
forces and is designed to provide maximum
initial fixation and long term stability.14·5
III. Optimize Load Distribution
The asymmetric profile of the Foundation
tibial components offers total coverage and
uniform loading. These results are not thought
to be achieved by symmetrical designs.



Contact with the Patellar
A sunrise view of the Foundation Knee shows the degree
of contact achieved between the femoral component and
the patellar component at high angles of flexion where the
stresses on the patella are the greatest.





Femoral Component

  • porous and nonporous
  • cobalt-chromium alloy
  • extended patellar groove
  • deepened patellar groove
  • anatomic patellar track
  • prominent lateral-patellar flange
  • six sizes of left and right components
Posterior Stabilized Option
  • 130° flexion capabilities
  • size specific controlled rollback
  • 60° cam engagement
  • congruent articular surface
  • standard P.S. or constrained
    P.S. insert option
Stemmed Tibial Baseplate
  • asymmetric profile coverage
    winged-keel stem
  • rounded anterior stem profile
  • porous option with four screw holes
  • non-porous option with no
    screw holes
  • six sizes of left and right components
  • non-porous option accepts tibial
    augmentation blocks
Patellar Component
  • all-polyethylene option with
    cement grooves
  • metal-backed Ti6AI4V option
  • three-peg fixation
  • two thickness options for all-poly patella
  • symmetrical flange design
  • five sizes (26mm-38mm)

Modular Tibial Inserts
  • symmetric design
  • modular snap mechanism
  • captured attachment screw
  • six sizes, five thicknesses (9mm-19mm)
  • ultra-congruent PCL sacrificing option



M.I.K.A.™ I n s t r u m e n ts
M.I.K.A. - Minimally Invasive Knee Arthroplasty
Smaller, sleeker
instruments for
minimally invasive
knee arthroplasty.