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Designed for better patient outcomes, the ATTUNE™ Cementless Fixed Bearing Knee with AFFIXIUM™ 3D Printed Technology provides better kinematics1-3, enhanced initial stability4, and advanced biologic fixation5 for total knee arthroplasty.

CEMENTLESS STRUCTURES

AFFIXIUM™ 3D Printed Technology

The AFFIXIUM™ 3D Printed Technology is an engineered 3D printing porous structure designed for cementless implants to promote bone ingrowth. The technology is designed to create a three-dimensional lattice structure resembling trabecula of cancellous bone. AFFIXIUM 3DP Technology utilizes a stronger titanium alloy material. It is then purposefully designed and manufactured to maintain structure strength and finished with Hot Isostatic Pressing (HIP) to completely close internal pore defects, achieving the highest quality 3D printed material in orthopedics.

Features & Benefits

Like every ATTUNE™ Knee technology, the ATTUNE™ Cementless FB Knee has been designed based on the latest available insights in knee replacement technology.
Initial Stability

Initial Stability

Initial stability is critical to biologic fixation. AFFIXIUM™ was designed with several key elements to increase initial stability, including four optimally located pegs with scallops and a cruciform keel.

Biological Fixation

Biological Fixation

The addition of the advanced 3D printed porous Titanium structure using AFFIXIUM™ 3DP Technology allows for more advanced biologic fixation2 in total knee arthroplasties. The porous technology coats the tibial substrate, the proximal cruciform keel, and the scalloped pegs to ensure biological fixation in optimal areas on the tibial implant.

Kinematic Performance

Kinematic Performance

ATTUNE has demonstrated improved kinematic performance compared with other designs and superior patient satisfaction. (MS data and UKNJR for reference). This kinematic performance may offer benefits to the cementless construct by allowing for less unnatural sliding.

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References

  1. Takagi, H., et al., Case series report of navigation-based in vivo knee kinematics in total knee arthroplasty with a gradually reducing femoral radius design. Ann Med Surg (Lond), 2017. 17: p. 33-37.
  2. Pfitzner T, Moewis P, Stein P, et al. Modifications of femoral component design in multi-radius total knee arthroplasty lead to higher lateral posterior femorotibial translation. Knee Surg Sports Traumatol Arthrosc. 2017. doi: 10.1007/s00167-017-4622-7.  
  3. Ranawat CS, White PB, West S, Ranawat AS. Clinical and Radiographic Results of Attune and PFC Sigma Knee Designs at 2-Year Follow-Up: A Prospective Matched-Pair Analysis.    J Arthroplasty 2017;32(2):431-436.
  4. DePuy Synthes. Tibial Base Micromotion for ATTUNE Prototypes and Competitive Designs During Activities of Daily Living.  TR-000002196 report. Windchill. 2018.
  5. Tong W, Smith B, Henninger D, Kane R, Muench T. Bone Ingrowth of RTT porous structure. ORS 2020 Annual Meeting Paper No. 0337.

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© DePuy Synthes 2022.

All rights reserved. Please refer to the instructions for use for a complete list of indications, contraindications, warnings and precautions.