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Trabecular Metal Total Ankle
Designed to reproduce the ankle’s natural flexibility and motion, the Zimmer Biomet Trabecular Metal™ Total Ankle System is an ankle implant system in harmony with natural anatomy.
Zimmer Biomet
Zimmer Biomet
Zimmer Biomet strives to alleviate pain and improve the quality of life for people around the world.
6 Tibia and Talus Sizing Options
3 poly thickness options for each size
Advanced implant designed to last
- Prolong highly crosslinked polyethylene bearing surface to reduce volumetric wear.3,4
- Trabecular metal has a high coefficient of friction vs. cancellous bone for stable initial fixation.5
- Reduced bony resection with the Trabecular Metal Total Ankle leaves more bone, which statistically significantly increases bony support when compared to the alternative, flat resection.2
Lateral transfibular approach for peace of mind • Potential to reduce risk of post-operative complications that result from stressing neurovascular structures and disrupting angiosomes1,2 • Anatomic center of rotation is fully visualized and can be more precisely replicated • Fibular length and implant thickness can be balanced to natural deltoid ligament tension, minimizing stress on deltoid ligament and accompanying talar blood supply
Proprietary alignment and bone preparation system enables simplified precision • Alignment frame is intended to make surgery more repeatable and reproducible by providing rigid fixation for bone and instruments • Bone resection plane established normal to long axis of tibia to reduce variability in coronal plane alignment • Foot remains in plantigrade position during surgery to ensure proper tibio-talar alignment
Bicondylar, conical articulation designed to allow for more normal integration with tendon and muscular function and reproduce natural motion path of ankle • Accommodates axial rotation and A/P translation motions found in normal walking gait • 6 implant sizes available in anatomic configurations, with variable radii of curvature proportional to implant size, as in the natural ankle
• Prolong Highly Crosslinked Polyethylene bearing surface engineered to reduce volumetric wear3,4 • Curved bone-implant interface designed to minimize subsidence • Rails oriented in coronal plane to stabilize implant against normal joint motion • Semi-conforming articulation designed to limit point loading when varus/valgus stresses are present
References
1. Gill LH. Challenges in total ankle arthroplasty. Foot Ankle Int. 2004; 25(4):195-207.
2. Saltzman CM, Mann RA, Ahrens JE, et al. Prospective controlled trial of STAR Total Ankle ankle replacement versus ankle fusion: initial results. Foot Ankle Int. 2009; 30(7):579-596.
3. Data on file at Zimmer.
4. Gsell R, Yao JQ, Laurent MP, Crowninshield RD. Improved oxidation resistance of highly crosslinked UHMWPE for total knee arthroplasty. Society for Biomaterials 27th Annual Meeting Transactions, 84, 2001.
5. Bell CJ, Fisher J. Simulation of polyethylene wear in ankle joint prostheses. J Biomed Mater Res Part B Appl Biomater. 2007; 81B: 162-167.
6. Inman V. The Joints of the Ankle. Williams and Wilkins, 1976.
