TY - JOUR ID - 19679 TI - Comparative CT Study on Syndesmosis Mobility after Static or Dynamic Fixation for Ankle Fractures with Syndesmotic Rupture: A Pilot Study JO - The Archives of Bone and Joint Surgery JA - ABJS LA - en SN - 2345-4644 AU - Ibarzabal-Gil, Aitor AU - Galvez-Srvent, Elena AU - Martinez-Diez, Jose M. AU - Pallares-Sanmartí, Javier AU - Kalbakdij-Sanchez, Carlos AU - Mills, Sarah AU - Rubio-Suarez, Juan C. AU - Gil-Garay, Enrique AU - RODRIGUEZ-MERCHAN, E. Carlos AD - Department of Orthopedic Surgery, La Paz University Hospital-IdiPaz, Madrid, Spain AD - Department of Orthopedic Surgery, Infanta Elena University Hospital, Valdemoro, Madrid, Spain AD - Department of Orthopedic Surgery, La Paz University Hospital-IdiPaz, Madrid, Spain- Osteoarticular Surgery Research, Hospital La Paz Institute for Health Research, IdiPAZ (La Paz University Hospital, Autonomous University of Madrid), Madrid, Spain Y1 - 2022 PY - 2022 VL - 10 IS - 8 SP - 702 EP - 711 KW - Ankle KW - CT Scan KW - Dynamic fixation KW - Fracture KW - Static fixation KW - Syndesmosis mobility DO - 10.22038/abjs.2022.61845.3020 N2 - Background: The objective of this prospective randomized pilot study is to compare, by computed tomography (CT), the mobility of syndesmosis after static fixation (SF) or dynamic fixation (DF) in ankle fractures with syndesmotic rupture (AFSR) in adults, and to compare this mobility with that of healthy ankles.Methods: Forty-two patients with an AFSR were randomized to 2 groups: SF (N=21) or DF (N=21). Seven patients were lost to follow-up. Ultimately, 35 patients (SF, N=20; DF, N=15) were analyzed. The clinical results were assessed with the American Orthopedic Foot and Ankle Society scale. To assess syndesmosis mobility, CT in 30° of plantar flexion (PFlex) and 20° of dorsal flexion (DFlex) was performed on both ankles one year after the fracture. Four parameters were measured: anterior tibiofibular distance, posterior tibiofibular posterior distance, angle of fibular rotation (AFR), and anteroposterior fibular translation. Results: The AFR between DFlex and PFlex was more similar to the non-affected side in the DF group. The other three parameters showed no statistical differences between types of fixation. The mean loss of AFR compared with the non-affected side was 1.2° in the SF group and 0.1° in the DF group. No clinical differences between the SF group and the DF group were found. No correlation between clinical and radiological results was observed.Conclusions: The AFR was more similar to the non-affected side in the DF group. However, this finding did not correlate with a better clinical result. Keywords: Ankle; Fracture; Syndesmosis mobility; Static fixation; Dynamic fixation; CT scan Level of Evidence II: Prospective cohort study. UR - https://abjs.mums.ac.ir/article_19679.html L1 - https://abjs.mums.ac.ir/article_19679_1d61a425156f93a1753722932ed7153d.pdf ER -