DynaNail® TTC Fusion System

DynaNail® TTC Fusion Nail - In Bone
DynaNail® TTC Fusion Nail
DynaNail® TTC Fusion Nail - In Bone
DynaNail® TTC Fusion Nail
Enovis Foot & Ankle

DynaNail® TTC Fusion System

Sustained Dynamic Compression for TTC Fusions

DynaNail® Data

The DynaNail® TTC Fusion System is engineered specifically for tibiotalocalcaneal (TTC) fusions, addressing degenerative conditions, joint deformities, and revision procedures with unique technology that adapts to the body throughout the healing process.

Powered by Enovis™ patented pseudoelastic NiTiNOL technology, the DynaNail® TTC Fusion System provides sustained, intraoperative and post-operative compression, optimizing biomechanical stability while promoting faster and stronger fusions. Unlike static implants that lose compression over time, DynaNail® continuously responds to bone resorption, reducing the risk of nonunion and enhancing long-term outcomes.

Learn more about the power of NiTiNOL.

Download the Surgical Technique Guide

TTC Fusion System

The DynaNail® TTC Fusion System stands alone as the sole fusion method providing the compression performance of an external fixator within an intramedullary nail. Specifically engineered for TTC fusion procedures, it ensures higher compression and stability, setting a new standard in fusion technology.

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.

  • Delivers 6 mm of post-operative compression, plus an additional 6 mm of manual intra-operative compression
  • Ensures automatic dynamization upon weight-bearing
  • Paired with the durable DynaFrame™ CF (Carbon Fiber) Deployment System
  • Available in a range of diameters and lengths, including 220 mm, 260 mm, and 300 mm for revision and bailout procedures

Demonstrated Elite Performance

The compression-sustaining DynaNail® TTC Fusion System is compatible with femoral head allografts, 3D-printed bulk spacers, and adjunctive fusion procedures like triple arthrodesis.

Non-Unions from Prior Arthrodesis

Images Courtesy of:
Dan Latt, MD, Tucson, AZ

x-ray - arthrodesis non union

Large Bony Defects - Absent Talus

Images Courtesy of:
Tom SanGiovanni, MD, Coral Gables, FL

x-ray - large boney defects

Charcot Foot

Images Courtesy of:
Jeffrey Covell, MD, Danville, KY

x-ray - Diabetics-Smokers - Charcot Example.jpg

Failed Total Ankle Replacement

Images Courtesy of:
Mark Conklin, Golden, CO

x-ray - failed total ankle

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

Compression chart

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

DN-Weightbearing-Stress-Model.jpg

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DynaNail TTC Animation

DynaNail Animation

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DynaNail® TTC Patient Testimonial - Dave

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DynaNail® TTC Patient Testimonial - David

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DynaNail TTC Fusion Surgical Video with Dr. Steve Herbst

  1. Yakacki CM, et al. Expert Rev Med Devices, 2011. 8(2): 159-166
  2. Hsu, AR, Ellington JK, Adams, SB. Foot & Ankle Specialist, 2015. Oct; 8(5): 389-396.
  3. Anderson RT, Yakacki CM, et al. Journal of Mechanical Beavior Biomedicad Materials, 2016. Sept; 62:83-92.