- Tibial implant creates a compressive force drawing tray toward tibia to promote stability.
- Improved initial fixation which may reduce risk of post-operative loosening compared to competitor tray with porous keel.5,6
- Greater construct strength due to more uniform loading in tibial bone compared to porous keel competitor.3,4
Strength in Numbers
Affinium3D™ additive porous technology has been engineered to mimic the properties of natural bone and optimized for bone ingrowth7
100% interconnected pores with randomized and irregular shaped pores
65% porosity by volume
540µm average pore size
substantial in-growth at only 4-weeks8
complete consolidation at 12-weeks8
1. Engage Document 101-09912-004-01: Anchor Compression Test Report on file.
2. Engage Document 101-09912-001-01 Anchor Fixation Report on file.
3. Engage Document 101-09912-009-01 Static Tibial Cadaver Strength Report on file.
4. Document 1906527.000_0138 – Engage Biomechanical Testing Report on file.
5. Crook PD, Owen JR, Hess SR, Al-Humadi SM, Wayne JS, & Jiranek WA. (2017). Initial Stability of Cemented vs Cementless Tibial Components Under Cyclic Load. The Journal of Arthroplasty, 2556-2562.
6. Yildirim GC, Gopalakrishnan A, Davignon RA, Parker JW, Chawla H, & Pearle AD. (2016). Comparative Fixation and Subsidence Profiles of Cementless Unicompartmental Knee Arthroplasty Implants. The Journal of Arthroplasty, 2019-2024.
7. Taniguchi, N., Fujibayashi, S., Takemoto, M., Sasaki, K., Otsuki, B., Nakamura, T., Matsuda, S. (2016). Effect of pore size on bone ingrowth into porous titanium implants fabricated by additive manufacturing: An in vivo experiment. Materials Science and Engineering, 690-701.
8. Ovine study on file.