Abstract
Category:Trauma; AnkleIntroduction/Purpose:We aimed to compare the midterm radiological and clinical outcomes between closed reduction and internal fixation (CRIF) using the fibular intramedullary nail (IMN) and open reduction and internal fixation (ORIF) using plates for the treatment of unstable ankle fractures in active young patients.Methods:In this retrospective cohort study, 204 patients treated with CRIF using the fibular IMN (94 patients) or ORIF using the locking plate (110 patients) were included after at least 3 years of follow-up. The mean patient age was 41.4 years. Radiographic evaluation included the quality of reduction assessed by plain radiography and the three-dimensional (3D) reconstruction model using the CT scan images as well as the development of posttraumatic ankle osteoarthritis (PTOA) assessed by weightbearing plain radiography. Clinical evaluation included the American Orthopaedic Foot & Ankle Society (AOFAS) hindfoot score, Olerud and Molander score (OMAS), the Foot and Ankle Outcome Score (FAOS) and visual analog scale (VAS) pain score as well as complications.Results:In an assessment by both plain radiography and the 3D reconstruction model, the fair or poor reduction was more observed in the IMN group than in the ORIF group at final follow-up (P <.001). Poor reduction in the IMN group was significantly related to Weber type C, pronation type injury, and comminuted fibular and trimalleolar fractures (P <.001). PTOA was observed in 21.3% in the IMN group compared to 9.1% in the ORIF group (P =.024). There were no significant differences in clinical outcomes between the 2 groups. There were significantly fewer postoperative complications in the IMN group than in the ORIF group (9.5% vs 39%, P <.001).Conclusion:Surgeons should consider ORIF for unstable ankle fractures in active young patients with Weber type C, pronation type injury, and comminuted fibular and trimalleolar fractures.
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