In the Koutsogianis procedure, the calcaneus is slid in which direction?

In the Koutsogianis procedure, the calcaneus is slid in which direction?

• A. Lateral
• B. Inferior
• C. Medial
• D. Superior

Answer: (C)

The key idea is realigning the hindfoot by moving the calcaneus toward the midline. In the Koutsogiannis procedure, a posterior calcaneal osteotomy is performed so the posterior tuberosity can slide medially. This medial shift medializes the weight-bearing axis and corrects hindfoot valgus, helping restore proper subtalar and Achilles tendon alignment. Sliding laterally would worsen valgus, while moving the bone inferiorly or superiorly would not achieve the same medial realignment needed for this correction.

The key idea is realigning the hindfoot by moving the calcaneus toward the midline. In the Koutsogiannis procedure, a posterior calcaneal osteotomy is performed so the posterior tuberosity can slide medially. This medial shift medializes the weight-bearing axis and corrects hindfoot valgus, helping restore proper subtalar and Achilles tendon alignment. Sliding laterally would worsen valgus, while moving the bone inferiorly or superiorly would not achieve the same medial realignment needed for this correction.