• Milton da Silva Linhares Junior, Marcos Broggi Ciardullo, Orlando Colavolpe Neto, Yasmín Estefanía González Herrera, Pablo Gabriel Garcia Ochoa, SilvaJorge Dos SantosJDSTrauma Service, Instituto de Ortopedia e Traumatologia, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, São Paulo, SP, Brazil. Electronic address: jorge.ssilva@hc.fm.usp.br., and Kodi Edson Kojima.
• Trauma Service, Instituto de Ortopedia e Traumatologia, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, São Paulo, SP, Brazil. Electronic address: milton.linhares@hc.fm.usp.br.
• Injury. 2023 Nov 1; 54 Suppl 6: 110745110745.

BackgroundAbout 10% of ankle fractures are located above the syndesmosis, which causes injury to the ligament structure of the syndesmosis. There is no consensus regarding when to allow weight-bearing on the operated limb of patients who suffered ankle fractures requiring intraoperative fixation.ObjectiveThe aim of this study is the evaluation of radiographic parameters of syndesmosis reduction and fixation in patients with ankle fracture who underwent immediate protected weight-bearing (use of walking-boot and crutches).Patient And MethodsRetrospective case series from January 2015 to December 2020. Evaluation of the tibiofibular clear space, tibiofibular overlap, and medial clear space in the preoperative x-ray, immediate postoperative, 3-, 6- and 12-month after syndesmosis fixation and rehabilitation with protected immediate weight-bearing with crutches and walking-boot.ResultsOut of 137 ankle fractures 39 were included. There was no significant difference in the tibiofibular clear space between the immediate x-ray and after 12 months (4.5 mm ± 1.1 vs. 4.6 mm ± 1.8; p > 0.999). Tibiofibular overlap hasn't shown significant difference between immediate and 12-month x-ray (6.2 mm ± 2.6 vs. 6.6 mm ± 2.6; p > 0.999). Medial clear space also has shown no worsening from immediate to 12-month x-ray (3.1 mm ± 0.9 vs. 2.8 mm ± 0.9; p > 0.999). There were no fixation failure nor postoperative infection.ConclusionImmediate weight-bearing for patients with ankle fractures with syndesmosis injury and treated with intraoperative fixation with positioning screw proved to be safe with good maintenance of the reduction, no failures of the synthesis material observed and no reports of postoperative infection in the period. LEVEL 3 EVIDENCE: therapeutic retrospective case-series.Copyright © 2023. Published by Elsevier Ltd.

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