Osteoimplant Technology, Inc.’s
MJS™ Anatomic Knee System was designed to enhance
durability, minimize polyethylene wear between all articulating
surfaces, to minimize contact stress associated with wear
and to achieve a well balanced knee with normalized quadriceps
and patellar tendon tension. The MJS™ Knee system
allows maximum surgical flexibility while incorporating
features that improve implant stability, function and
performance. Specific design features of the MJS™
were established from a history of product performance
and surgeon experience. The modularity and flexibility
of the MJS™ system provide a wide range of surgical
options while its simplified instrumentation system allows
for consistent and reproducible results.
6 sizes with Anterior Posterior sizing directly
correlated with Medial Lateral width to cover the
full spectrum of femoral anatomy.
Provided in left and right configurations to replicate
natural kinematic motion between the femur, tibia
and patella.
Precision ground to provide uniform contact zones
throughout the range of motion.
Designed with a congruent distal radius to optimize
contact areas and reduce contact stress.
Allows at least use of one size up and one size
down with any size tibial component without compromising
the centerline of the condyles.
Closely resemble the anatomic centers and radius
of curvature for articulation with the tibia
Deepend patellar groove and raised lateral condyle
to avoid functional shortening of the extensor tracking
and to provide resistance to lateral subluxation of
the patella.
Manufactured from CoCrMo per ASTM F-75
TIBIAL COMPONENT
FEATURES AND BENEFITS
6 sizes with AP sizing directly correlated with
DL width to cover the full spectrum of femoral anatomy.
Deep PCL Notch for optimal ligament clearance.
Modular tibial inserts secured using a four point
containment system.
Tri-flange cruciate keel enhances cemented fixation
which in turn increases stability and precludes component
lift off or micromotion.
Smooth flanges on blasted keel assist to avoid stress
shielding.
Cruciate keel replicates the natural tibial bearing
surface while still maintaining a central location
in the ML plane and offset in the AP plane.
Optimal stem position to reduce incidence of stem
contact with posterior and lateral cortex walls and
conserve bone stock for future potential revision
surgeries.
Allows at least use of one size up and one size
down with any size femoral component without compromising
the centerline of the condyles.
Manufactured from CoCrMo per ASTM F-
TIBIAL INSERTS
FEATURES AND BENEFITS
7 sizes
Manufactured from the purest grade of calcium stearate
free UHMWPE.
Articular surface rotationally tracks toward the
centerline of the knee in the anterior direction to
allow for rotary motion.
Secured into baseplate using a four point containment
system.
10 degree slope approximates the natural anatomy
of the tibia
PATELLAR COMPONENTS
FEATURES AND BENEFITS
Extended to fully cover bone patella
Enlarged stress area distribution to minimize point
tracking between the condyles
Provides the full contact needed to minimize wear
and deformation of the medial and more often lateral
facet areas.
More accurately reproduces the normal kinematics
of the patello-femoral joint by maintaining the proper
tension in the extensor mechanism.
Concentric dome with choice of one or three pegs.
3 sizes
Manufactured from the purest grade calcium stearate
free UHMWPE
