Total Knee System
Lead Designer: Richard H. Rothman M.D., Ph.D. and Mark Kester , Ph.D.
Single Radius Curvature
Single radius geometry provides stability in mid-flexion and enhances quadriceps
function to restore natural knee kinematics and provide confidence in performing
daily activities 1,2     .
Produces constant ligament tension,
reduces mid-flexion instability and
facilitates intra-operative ligament
balancing1  .
Lengthens the quadriceps moment
arm, enhancing quadriceps efficiency
and reducing force required to attain
full extension2  .
Gradually deepening funnel shaped trochlear groove allows for patient’s soft
tissue to drive the patella into the trochlea groove.

Trochlear groove further deepens and creates a “boat” shaped non-contact
area. The extra space between patella and femur acts as a buffer and reduces
the incidence of patella clunk 3  .
Replicate Natural Motion
The condylar geometry is shortened and flared to allow for 150+ degrees of flexion, accommodate
increased I/E rotation as the knee approaches deep flexion, and preserve enhanced contact area
between femur and insert 4    .
MOBIO ®    post-cam design accommodates
sufficient I/E rotation at all flexion angles
while maintaining excellent contact area
and low contact point throughout flexion
and extension.
Versatile Bearing Options
MOBIO ®   Knee System offers different insert options to accommodate wide variety of clinical conditions.
Vitamin E is introduced to highly cross-linked poly material to prevent oxidative degradation, enhance wear
performance and maintain mechanical strength 5    .
PS Insert is used for common posterior stabilized
surgeries, whereas PS+ insert offers more I/E and
V/V stability compared to PS insert.
CR insert is used for PCL retaining surgeries. CR+
insert is a condylar stabilized option that is preferred
in cases where PCL is insufficient or absent.
Abundant Size Options
15 femur sizes, including 5 narrow options, are
offered to provide excellent bone coverage
and minimize overhang6.
1mm thickness increment is offered in
frequently used thickness ranges to
fine tune ligament balancing.
9 tibia sizes are offered with sufficient
interchangeability to take full advantage
of abundant size options.