Sizer Insertion, Trial Implant Insertion

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Sizer Insertion Place the cannulated, 6mm sizer over the guide pin and insert it through the sinus tarsi into the sinus canalis from lateral to medial (Figure 5) Assess the range of motion of the subtalar joint Continue to insert the remaining sizers (8, 9, 10, 12mm) until proper correction is achieved The appropriate size will allow approximately 2-4 degrees of subtalar joint eversion

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Trial Implant Insertion After the appropriate size is determined, remove the sizer Insert the corresponding Trial Implant using the cannulated 3.5mm Hex Insertion Tool (Figure 6) Assess the range of motion of the subtalar joint Use intra-operative imaging to evaluate the degree of correction and placement of the Trial Implant

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