TTC & Hindfoot Fusion | Case Report – DynaNail® TTC Fusion System TTC And Hindfoot Fusion Case Report DynaNail TTC | Page 3

Watch the Internal Element “In Action”
The unloading of the element can be tracked by X-ray or CT scan using several methods:
1. In its fully stretched position, the Sliding Element extends plantarly from the outer body of the
Nail. As resorption/settling occurs, the Sliding Element will retract back into the Nail Body.
Lucent
Region
Immediate Post-Op:
Sliding Element extending
from Nail Body
2. The position of the calcaneal screws in their associated slots can be visualized under
fluoroscopy and used to determine the extent the Compressive Element has unloaded. When
the Compressive Element is in its fully stretched position, the calcaneal screws are located at
the distal end of the slots (1) and a lucent region appears above the L-M screw (see X-ray
above). As the Compressive Element unloads, the screws progressively shift upwards. The
element has completely unloaded when the screws are at the proximal end of the slot and the
lucent region disappears (2).
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