DynaNail® TTC Fusion Nail
DynaNail® TTC Fusion Nail
The DynaNail® TTC Fusion System is designed for use in tibiotalocalcaneal (TTC) fusion, or hindfoot fusion, procedures to address degenerative conditions, correct joint deformities and revise failed total ankle replacements or arthrodesis non-unions.
The DynaNail incorporates MedShape’s patented superelastic nickel titanium (NiTiNOL) technology that can respond and adapt to changes in the joints. Intra-operatively, the NiTiNOL Compressive Element is stretched into its activated state and fixed with screws. Post-surgery, the Compressive Element will maintain the target fusion bones in close apposition and under compression for up to 6 mm of bone resorption or settling, making the DynaNail the ultimate choice in internal compression nails.
- Overview
- Videos
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- Documents
- References
Maintained Compression Without External Fixation? Nailed It
The DynaNail® TTC Fusion System is the ONLY fusion approach that offers the compression performance of an external fixator inside an intramedullary nail.
- Achieves 6 mm of post-operative compression PLUS 6 mm of intra-operative manual compression
- Provides automatic dynamization upon weightbearing
- Accompanied by the robust DynaFrame™ CF (Carbon Fiber) Deployment System
- Available in multiple diameters and lengths – Offered in 220, 260 and 300 mm lengths for revision and bail out procedures
Demonstrated Elite Performance
The DynaNail can be indicated in hindfoot fusion procedures to treat high-risk patients with complex pathologies. This compression-sustaining fusion solution is also suitable with femoral head allografts and adjunctive fusion procedures such as triple arthrodesis.
Non-Unions from Prior Arthrodesis
Images Courtesy of:
Dan Latt, MD, Tucson, AZ
Large Bony Defects - Absent Talus
Images Courtesy of:
Tom SanGiovanni, MD, Coral Gables, FL
Charcot Foot
Images Courtesy of:
Jeffrey Covell, MD, Danville, KY
Failed Total Ankle Replacement
Images Courtesy of:
Mark Conklin, Golden, CO
The Proof Is In The Science
Maintained Active Compression
Benchtop testing shows that the DynaNail can maintain compression for up to 6 mm of bone resorption or settling, similar to an external fixator. In contrast, existing static IM nails, including other internal compression nails, lose 90% of their compression when just 1 mm of bone resorption occurs.1,2
Immediate Dynamization
Thanks to the axial compliance of its NiTiNOL Compressive Element, DynaNail is able to transfer almost 70% of forces to the bone during weight-bearing; whereas, static competitor nails are only able to transfer 20% of walking forces.3
DynaNail Animation
DynaNail TTC Patient Testimonial - Dave Backer
DynaNail TTC Patient Testimonial - David Johnston
DynaNail TTC Fusion Surgical Video with Dr. Steve Herbst
Instructions for use:
- Yakacki CM, et al. Expert Rev Med Devices, 2011. 8(2): 159-166
- Hsu, AR, Ellington JK, Adams, SB. Foot & Ankle Specialist, 2015. Oct; 8(5): 389-396.
- Anderson RT, Yakacki CM, et al. Journal of Mechanical Beavior Biomedicad Materials, 2016. Sept; 62:83-92.
