• Gianluca Testa, Marco Ganci, Mirko Amico, Giacomo Papotto, Serena Maria Chiara Giardina, Giuseppe Sessa, and Vito Pavone.
• Department of General Surgery and Medical Surgical Specialties, Section of Orthopaedics and Traumatology, A.O.U. Policlinico - Vittorio Emanuele, University of Catania, Via Santa Sofia, 78, 95123, Catania, Italy. gianpavel@hotmail.com.
• Eur J Orthop Surg Tr. 2019 Aug 1; 29 (6): 1325-1330.

PurposeTrimalleolar fractures are a common injury of the ankle that require surgical treatment to obtain an anatomic reduction of both malleoli and stabilization of the syndesmosis. This study aims to report the outcomes of surgical treatment for trimalleolar fractures, identifying the risk factors determining a worse result.Materials And MethodsBetween January 2013 and December 2016, 48 patients with trimalleolar fracture treated with open reduction and internal fixation were retrospectively analyzed. The mean age was 44.69 years, and average body mass index (BMI) was 29.04. According to the Danis-Weber classification, 30 (62.5%) fractures were type B and 18 (37.5%) were type C. Clinical and radiographic evaluations at 3, 6, and 12 months were assessed. The functional results of Visual Analogue Staircases and Olerud-Molander (O&M) ankle score were reported.ResultsNo significant difference was found among the size of the PM in patients with and without ankle dislocation (p = 0.364). Therefore, there is no correlation between the size of the posterior fragment and the ankle dislocation and the size of the posterior malleolus and syndesmosis stability (p = 0.328). Age over 61 years, BMI > 40, ASA > 1, type C fracture, and fracture dislocation were considered as negative prognostic fractures.ConclusionsSurgical treatment for trimalleolar fractures needs accurate preoperative planning. Age over 61 years, BMI > 40, ASA > 1, type C fracture, and fracture dislocation were considered as negative prognostic fractures.

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