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RESTORING NATURAL KNEE KINEMATICS1,2
ATTUNE™ Medial Stabilized Knee System
RESTORING NATURAL KNEE KINEMATICS1,2
ATTUNE™ Medial Stabilized Knee System
The ATTUNE™ Medial Stabilized Knee System is designed to restore a patient’s natural knee kinematics for improved feel and function.1 Patients can benefit from the system’s medial stability1, function2, and versatility3 to help meet the evolving need for improved patient satisfaction.
Key Resources
1
ATTUNE GRADIUS™ Curve
The geometry of the curve is designed to address the unnatural sliding of the femoral component on the tibial insert, to provide smooth motion and stability during everyday activities.4
2
LOGICLOCK™ Tibial Base
The LOGICLOCK™ Tibial Base has a patented central locking design that provides the architecture for the system that optimizes kinematics with the femur always matching the same-size insert.6
3
Medial Stabilized Insert
The asymmetric anatomic inserts feature a raised medial lip to provide medial stability. Along with a TruARC™ Lateral Path5 for natural knee Function,1,2 they provide versatility3 to address a range of surgical philosophies.
1. ATTUNE GRADIUS™ Curve
The geometry of the curve is designed to address the unnatural sliding of the femoral component on the tibial insert, to provide smooth motion and stability during everyday activities.4
2. LOGICLOCK™ Tibial Base
The LOGICLOCK™ Tibial Base has a patented central locking design that provides the architecture for the system that optimizes kinematics with the femur always matching the same-size insert.6
3. Medial Stabilized Insert
The asymmetric anatomic inserts feature a raised medial lip to provide medial stability. Along with a TruARC™ Lateral Path5 for natural knee Function,1,2 they provide versatility3 to address a range of surgical philosophies.
Product Features and Benefits
Stability
Increased Medial Stability. Two design features deliver lower medial condyle movement both with and without PCL. Increased medial lip height results in 54% higher anterior jump height. Increased anterior conformity delivers stability, working in conjunction with the ATTUNE GRADIUS™ Curve5
Function
Optimizing function to replicate natural knee kinematics. The TruARC™ Lateral Path optimizes lateral tibiofemoral kinematics to support smooth lateral rollback during flexion.2 Gradual recruitment of the MCL and the lower peak MCL strain, observed by the ATTUNE MS System, may lead to better functional outcomes.8,9
Versatility
A solution to address multiple PCL situations and support your surgical philosophy During total knee replacement surgery, multiple PCL situations might arise, and the ATTUNE MS system can support these PCL scenarios in addition to several surgical philosophies.5 Additionally, when using a CR femoral component with a medial stabilized insert, 37% more bone is preserved than in a typical PS construct.9
EXPEDITING ADOPTION
Seamless Workflow Integration
Regardless of surgical philosophy or technique, the ATTUNE Medial Stabilized Knee System can be adapted to your workflow without any modification or special accommodation.
The system can be used with mechanical or patient-specific alignment and is compatible with INTUITION™ Instruments, TRUMATCH™ Personalized Solutions, and the VELYS™ Robotic-Assisted Solution technologies to support knee robotic replacement.10
Science-Based Innovation
Related Resources
References
- Johal P, Williams A, Wragg P, Hunt D, Gedroyc W. Tibio-femoral movement in the living knee. A study of weight bearing and non-weight bearing knee kinematics using ‘interventional’ MRI. J Biomech. 2005;38(2):269-276.
- DePuy Synthes. Forward dynamics modeling analysis: multi-patient verification report, SEA103845908. Adaptive. 2021
- DePuy Synthes, ATTUNE Fix Bearing Knee IFU, 2021, IFU 0902-00-902 Rev B, ADAPTIV 103692631.
- Clary CW, Fitzpatrick CK, Maletsky LP, Rullkoetter PJ. Improving dynamic mid-stance stability: an experimental and finite element study. Poster presented at: Orthopaedic Research Society Annual Meeting; February 4-7, 2012; San Francisco, CA.
- DePuy Synthes. Design verification study: forward dynamics analysis, DKB simulation of the ATTUNE MS and CR designs, SEA103664945. Adaptive. 2021
- Fitzpatrick CK, Clary CW, Rullkoetter PJ. The influence of design on TKR mechanics during activities of daily living. Poster presented at: Orthopaedic Research Society Annual Meeting; February 4-7, 2012; San Francisco, CA; poster 2034
- Lim D, Kwak DS, Kim M, et al. Kinematically aligned total knee arthroplasty restores more native medial collateral ligament strain than mechanically aligned total knee arthroplasty [published online ahead of print, July 26, 2021] Knee Surg Sports Traumatol Arthrosc. 2021. doi:10.1007/s00167-021-06680-y.
- Courtney P, Lee G. Early outcomes of kinematic alignment in primary total knee arthroplasty: a meta-analysis of the literature. J Arthroplasty. 2017;32:2028-2032.
- DePuy Synthes. Dwell point distance/lip heights in medial/non-medial pivoting implants, SEA103867522. Adaptive. 2021.
- DePuy Synthes. ATTUNE medial stabilized DHF documentation form, SEA103664950. Adaptive. 2021
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