MedShape Inc., Atlanta, reports on initial clinical outcomes with the DynaNail Mini Fusion System for subtalar fusion procedures. First used clinically under a limited market release in 2019, the DynaNail Mini has been implanted by over 50 orthopedic surgeons in over 50 hospitals across the United States.
The DynaNail Mini features MedShape’s patented superelastic nickel titanium (Nitinol) technology and is the first device designed for subtalar fusion that offers maintained active compression post-surgery. Compression across the joint is important not only for ensuring that the bones remain tightly apposed, but also in promoting the appropriate bone healing response.
The DynaNail Mini features an internal Nitinol Compressive Element that allows for dynamic compression to be maintained post-surgery. The superelastic properties of Nitinol enable the DynaNail Mini to automatically adapt and respond to changes in the joint throughout the healing process, while also allowing for immediate dynamization upon weight-bearing. Furthermore, the device includes two transverse locking screws to help provide additional joint stability and improved fixation.
Dr. Sam Adams (Duke University), was one of the first surgeons to implant the DynaNail Mini and has performed numerous surgeries with the longest follow-up results now at nine months. According to Dr. Adams, “The DynaNail Mini with its internal Nitinol element is an unrivaled device for subtalar fusion. Its maintained post-operative compression and transverse locking screws give me the confidence that I can achieve successful outcomes where traditional compression screws might fail. To date, my Mini patients have all successfully fused with no complications.”
