Background: In this study, we aimed to compare a 4-mm lag screw and Kirschner wire technique versus a 4-mm lag screw and Kirschner wire (K-wire) technique with additional miniplate fixation for the treatment of medial malleolar fractures.
Methods: A total of 23 patients who were diagnosed with isolated fractures of the medial malleolus and operated in our center were retrospectively analyzed. The patients were divided into two groups: Group A, medial malleolar fracture fixed with a 4-mm cannulated screw and a K-wire (n=11) and Group B, a 4-mm cannulated screw and K-wire used for fixation with miniplate fixation for extra stability (n=12). Clinical outcomes were assessed using the American Orthopaedic Foot and Ankle Society (AOFAS) Ankle-Hindfoot Score at 2, 6, 12, and 24 months postoperatively. At 12-24 months, the presence of pain and tenderness in the medial malleolus with palpation was evaluated using the visual analog scale (VAS) pain scores.
Results: The mean time to union was 2.23±0.56 (range, 1.8-2.9) months in Group A and 2.46±0.45 (range, 1.9-3.1) months in Group B, indicating no statistically significant difference between the two groups (p>0.05). The mean AOFAS score at 2 months postoperatively was 60.40±7.78 (range, 46-79) in Group A and 73.60±10.80 (range, 53-87) in Group B, indicating a statistically significant difference between the groups (p<0.01). However, there was no statistically significant difference in the mean AOFAS scores at 6 and 12 months between the groups (p>0.05). The mean VAS pain scores at 12-24 months postoperatively did not significantly differ between the groups (p>0.05).
Conclusion: Our study results suggest that the treatment of medial malleolar fractures with a cannulated screw and K-wire with additional stabilization using a miniplate ensures favorable early outcomes with early return to daily living activities. However, both techniques have similar outcomes in the mid-term.