Based on proprietary CT reconstruction data, the tibia and talar components were designed to mimic patients’ natural anatomy. The curved talar component was created to align with the trabecular bone structure of the talus and the tibia to provide anatomic cortical coverage and account for fibular articulation.1,2 Specifically, the curved talus component aligns with the talus’ trabecular bone structure for inherent stability while the flat cut talus provides initial fixation through its press-fit bone cage and plasma pegs.2
Vantage ® Total Ankle System
A New Perspective in Total Ankle
Vantage ® Total Ankle System
A New Perspective in Total Ankle
Vantage® Total Ankle System
Through the collaboration and innovation of engineering and surgeon thought leader expertise, the Vantage Ankle achieves a new perspective in total ankle by addressing clinical challenges and patient outcomes. Our proprietary CT reconstruction studies evaluated both healthy and diseased ankles to shape our curved and flat cut taluses and tibia components.1
Anatomic Redefined
Fixation
The tibia’s press-fit bone cage and plasma pegs create initial fixation, while the talar component’s curve-on-curve shape is designed to provide stability in the A/P direction. The talar component pegs also provide stability in the medial/lateral direction.
Biomechanic-Focused Design
A CT reconstruction study of the healthy talus led to the articular design of the talar component that allows for anatomic replication of the natural ankle biomechanics.2,6
Bone Removal
The curved talar design addresses the disease process by reducing the amount of talar preparation required. The radius of the curvature on the underside of the talar component is based on studies that analyze the effect of an arthritic talus.2
Reliability
The innovative tibial design and surgical technique are intended to preserve the integrity of the tibia anterior cortex while the anterior talar shield is designed to provide increased surface area that addresses subsidence.
Resources
- Valderrabano, V., Horisberger, M., Russell, I. et al. Etiology of ankle osteoarthritis. Clin Orthop Relat Res. 2009; 467: 1800. doi:10.1007/s11999-008-0543-6.
- Data on File at Exactech, Inc.
- Gougoulias NE, Khanna A, Maffulli N. History and evolution in total ankle arthroplasty. British Medical Bulletin. 2009;89:111-51. Epub 2008 Nov 13. doi: 10.1093/bmb/ldn039.
- Roche C, et al. Effect of varying screw configuration and bone density on reverse shoulder glenoid fixation following cyclic loading. Transactions of the 54th Annual Orthopaedic Research Society Meeting; 2008 Mar 2-5; San Francisco, CA.
- Siegler S, Toy J, Seale D, Pedowitz D. New observations on the morphology of the talar dome and its relationship to ankle kinematics. Clinical Biomechanics. 2014; 29:1-6.