PRODUCT
MOBIO Total Knee System KOSMO Stem JUVENO Stem PRIMO Acetabular System
ABOUT b-ONE
MOBIO ®
Total Knee System
FREEDOM IN MOTION
Lead Designer: Richard H. Rothman M.D., Ph.D. and Mark Kester, Ph.D.
Single Radius Curvature
A STEP FORWARD TOWARDS
A KINEMATICALLY NORMAL KNEE
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 consistent 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  .
Improved
Patellofemoral
Articulation
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 multiple insert options to accommodate a wide variety of clinical conditions.
Vitamin E is introduced to highly cross-linked polyethylene to prevent oxidative degradation, enhance wear
conformance and maintain mecharical strength5  .
PS insert is used for routine posterior stabilized
arthroplasty, whereas PS+ insert offers more I/E and
V/V stability compared to the PS insert.
CR insert is used for retaining arthroplasty. CR+
insert is condylar stabilized option that is preferred
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.
Files
MOBIO Whitepaper
MOBIO Design Rationale EN.pdf
MOBIO CR Surgical Tech
References
Wang, H., Simpson, K. J., Chamnongkich,
S., Kinsey, T. & Mahoney, O. M. A
biomechanical comparison between the
single-axis and multi-axis total knee
arthroplasty sys- tems for the
stand-to-sit movement. Clin. Biomech.
20, 428–433 (2005).
Wang, H. et al. Biomechanical Differences Exhibited During Sit-To-Stand Between Total Knee Arthroplasty Designs of Varying Radii. Journal of Arthroplasty 21, 1193–1199 (2006).
Lonner, J. H., Jasko, J. G., Bezwada, H. P., Nazarian, D.G. & Booth, R. E. J. Incidence of patellar clunk with a modern posterior-stabilized knee design. Am. J. Orthop. (Belle Mead. NJ). 36, 550–553 (2007).
b-ONE internal Test Data
Spece H, Schachtner JT, MacDonald DW, Klein GR, Mont MA, Lee GC, Kurtz SM. Reasons for Revision, Oxidation, and Damage Mechanisms of Retrieved Vitamin E-Stabilized Highly Crosslinked Polyethylene in Total Knee Arthroplasty. J Arthroplasty. 2019 Dec;34(12):3088-3093. doi: 10.1016/j.arth.2019.07.018. Epub 2019 Jul 18. PMID: 31416742; PMCID: PMC6864268.
Mahoney, O. M. & Kinsey, T. Overhang of the femoral component in total knee arthroplasty: Risk factors and clinical consequences. J. Bone Jt. Surg. - Ser. A 92, 1115– 1121 (2010).