DynaNail Mini® Fusion System – Product Information | MedShape DynaNail Mini® Fusion System – Product Information | Page 3

THE SAME MAINTAINED COMPRESSION PERFORMANCE.
NOW IN A SMALLER FORM
• Offers between 2-4 mm of post-operative compression
PLUS intra-operative manual compression
Transverse
Screw
• Provides strong joint stability due
to maintained compression
• Dual transverse screw fixation
to prevent device migration
Titanium Outer
Nail Body
Maintained Active Compression
Unlike traditional screws that lose compression within
1 mm of bone resorption, the DynaNail Mini is the ONLY
internal device for subtalar fusion procedures that
maintains active compression post-surgery in response
to bone resorption or settling. The amount of compression
maintained varies by the length of the Mini Implant. 3
Amount of available post-operative
compression by implant length
Nail Length
Internal NiTiNOL
Compressive
Element
Compression
60 mm 1.8 mm
70 mm 2.2 mm
80 mm 2.8 mm
90 mm 3.4 mm
100 mm 4.0 mm
Slotted Calcaneal
Screw Hole
Transverse
Screw
Sliding Element
WATCH THE COMPRESSIVE ELEMENT IN ACTION
11 Weeks Post-Surgery X-Ray
of 70 mm DynaNail Mini implanted
in 81 year old female.
**
1 mm
1 mm
**
The distance the NiTiNOL Element recovers can be measured
and tracked on x-ray post-surgery. In this case, with a 70mm, the
Calcaneal Screw is located 1 mm from proximal end of Nail Outer
Body slot indicating the NiTiNOL Element has recovered 1.2 mm
of its stretched length with 1 mm of compression remaining.
Images courtesy of Terrence Philbin, DO (Orthopedic Foot & Ankle, Columbus, OH)