Arthrodesis in the treatment of ankle osteoarthritis due to neglected malleolar fractures in the elderly.

Neglected malleolus fracture cases, among other conditions in which arthrodesis is inevitable, usually present with pseudoarthrosis of the malleolus and impaired ligament balancing. The study aimed to summarize the clinical data results of neglected malleolus fractures accompanied by ankle instability. The retrospective study was conducted at Adana City Training and Research Hospital. The files of the patients diagnosed with nonunion malleolus fractures admitted between January 1, 2018, and July 30, 2023, were analyzed. In addition to the demographics, the type of malleolus fracture, the technique used in arthrodesis surgery, use of graft, union status, presence of early and late complications, visual analog scale (VAS), and Maryland Foot Score (MFS) scores at preoperative, 3-, 6-, and 12-month postoperative visits were recorded. There was a total of 11 files available for analysis. The mean age of the cases was 70.55 ± 5.03, ranging between 65 and 82. The records showed that the patients ignored the need for surgical treatment for an average of 10.64 ± 3.5 months. In terms of the technique, 4 were treated using the Ilizarov only, 3 with the intramedullary nails, 3 with plates and screws, and the remaining Ilizarov and plate. The average duration of the union was 6.27 ± 2.99 months. The mean VAS scores for preoperative, postoperative 3rd, postoperative 6th, and postoperative 12th months were 7.55 ± 0.78, 5.55 ± 2.31, 3.45 ± 2.27, and 2.45 ± 1.44, respectively. The mean Maryland Foot Scores (MFS) for preoperative, postoperative 3rd, postoperative 6th, and postoperative 12th months were 21.82 ± 6.85, 51.27 ± 15.39, 61.18 ± 20.21, and 70.82 ± 5.27, respectively. This study has shown that no matter how difficult the case, if the appropriate implant and basic arthrodesis principles are followed, the union can be achieved, albeit late, in cases with osteoarthritis due to neglected ankle malleolus fracture. Especially in the presence of infection, it should be kept in mind that union may be delayed compared to the regular arthrodesis recovery duration, requiring the team performing the surgery to be familiar with the Ilizarov technique.