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ATTUNE® Cementless Knee System
The ATTUNE® Cementless Knee System includes the patented technologies of the ATTUNE Knee System. We have maintained the ATTUNE GRADIUS™ Curve to provide stability through the range of motion1,2,3 and GLIDERIGHT™ Articulation for improved patella-femoral kinematics.4 The SOFCAM™ Contact provides smooth engagement while minimizing stresses to the tibial spine5,6 for the PS variants. The INTUITION™ Instruments combined with the surgical process are designed to provide an intuitive and efficient surgical technique that allows surgeons to balance the soft tissues and precisely control the implant position and fit for each patient. Our ATTUNE Cementless System has learned from the heritage of the LCS®Cementless Knee System utilizing the same POROCOAT® Porous Coating and coated lug philosophy, which has demonstrated 97.4% survivorship at 18.1 years.7
Features & Benefits
ATTUNE GRADIUSTM Curve
The patented ATTUNE GRADIUS Curve is the gradually reducing femoral radius designed to provide a smooth transition from stability to rotational freedom through a patient’s range of motion.
The GLIDERIGHT Articulation encompasses a trochlear groove designed to accommodate patient variation and soft tissue interaction and patella components designed to optimize patella tracking while maintaining bone coverage.
The INTUITION Instruments combine surgical process with intuitive and efficient instruments to allow the surgeon to balance the soft tissue and precisely control the implant position and fit for each patient.
POROCOAT® Porous Coating
POROCOAT Porous Coating has shown positive performance in stability and fixation in DePuy Synthes hip, knee, and shoulder total joint replacements.7,8,9
Based on our clinical heritage, the central design of the ATTUNE Rotating Platform Tibial Base allows the tibial insert to rotate as the knee flexes, which allows for a more natural motion and may also reduce the stress and wear on the implant. 10,11,12
1. Fitzpatrick, C.K., Clary, C.W., Rullkoetter, P.J. (2012b, February). The influence of design on TKR mechanics during activities of daily living. ORS Annual Meeting, Poster #2034.
2. Clary, C.W., Fitzpatrick, C.K., Maletsky, L.P., Rullkoetter, P.J. (2012a, February). Improving dynamic mid-stance stability: an experimental and finite element study. ORS Annual Meeting, Poster #1044.
3. Clary, C.W., Fitzpatrick, C.K., Maletsky, L.P., Rullkoetter, P.J. (2013). The influence of total knee arthroplasty geometry on mid-flexion stability: an experimental and finite element study. Journal of Biomechanics, 46: 1351-1357.
4. Clary, C.W., Wright, A.P., Komosa, M.C., Maletsky, L.P. (2012b). The effect of patella medialization on patellofemoral kinematics after total knee replacement. 18th Congress of the European Society of Biomechanics (ESB); 29: 1262.
5. Fitzpatrick, C.K., Clary, C.W., Rullkoetter, P.J. (2012a). Post-cam engagement during dynamic activity with current posterior-stabilized TKR. 18th Congress of the European Society of Biomechanics (ESB), 1700: 29.
6. Fitzpatrick, C.K., Clary, C.W., Cyr, A.J., Maletsky, L.P., Rullkoetter, P.J. (2013). Mechanics of post-cam engagement during simulated dynamic activity. Journal of Orthopaedic Research, 31(9): 1438-1446.
7. McMahon SE, Doran E, O’Brien S, Cassidy RS, Boldt JG, Beverland DE. Seventeen to Twenty Years of Follow-Up of the Low Contact Stress Rotating-Platform Total Knee Arthroplasty With a Cementless Tibia in All Cases. J Arthroplasty 34(3): 508, 2019. 10.1016/j.arth.2018.11.024.
8. Kindsfater, K., Lesko, J. Survivorship of a modular acetabular cup system: medium-to long-term follow up. Arthroplasty Today.2018; 4: 376-382.
9. Updegrove, G., Nicholson, T., Namduri, S., Williams, G., Abboud, J. Short-term results of the DePuy Global Unite platform shoulder system: a two-year outcome study. Arch Bone Jt Surg. 2018; 6(5): 353-358.
10. Dun, S. (2012). Mobile-bearing total knee prostheses reduce axial rotational constraint torque. ORS Annual Meeting, Poster #1994.
11. Malinzak, R.A., Small, S.R., Rogge, R.D., Archer, D.B., Oja, J.W., Berend, M.E., Ritter, M.A. (2014). The effect of rotating platform TKA on strain distribution and torque transmission on the proximal tibia. The Journal of Arthroplasty, 29: 541-547.
12. Bottlang, M., Erne, O.K., Lacatusu, E., Sommers, M.B., Kessler, O. (2006). A mobile-bearing knee prosthesis can reduce strain at the proximal tibia. Clinical Orthopaedics and Related Research, 447: 105-11.
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