Medial malleolus malunion with secondary tibiotalar and syndesmotic incongruence - two case reports and ''box resection'' for its treatment.

INTRODUCTION Ankle fractures are among the most common injuries treated by orthopaedic surgeons. Malunion is one of the possible complications, and corrective surgery is often used to avoid long-term disability. However, few studies address medial malleolus malunion and the best revision surgery technique is controversial. We describe a new surgical technique, the "box resection". MATERIAL AND METHODS We present two cases of medial malleolus malunion with secondary talus lateral translation and syndesmotic incongruence. In order to restore a congruent tibiotalar joint, we performed the described technique. RESULTS We record significant improvement of AOFAS Score and range of motion in both cases, with resolution of pain symptoms. Postoperative radiographs show a congruent mortise with syndesmosis reduction. CONCLUSION The box resection allowed immediate talus medial translation to its original position. It is a simple and effective solution, with a good functional outcome.