Insert the yellow Probe instrument through the
sinus tarsi into the sinus canalis from lateral
to medial until tenting is noted on the medial
aspect of the foot (Figure 3)
The Probe should be positioned perpendicular
to the lateral wall of the calcaneus, angled slightly
posterior and superior
Move the Probe in a clockwise and counter clockwise
direction to slightly dilate the tarsal canal
Remove the Probe
Guide Pin Insertion
Insert the Guide Pin and make a small incision
medially to allow the Guide Pin to exit through
the medial aspect of the foot (Figure 4)
The distal aspect of the pin should exit the
skin just inferior to the tibialis posterior tendon
and anterior and slightly inferior to the medial
malleolus
