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KMID : 1207720230150030358
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Clinics in Orthopedic Surgery
2023 Volume.15 No. 3 p.358 ~ p.366
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Differences in Pilon Fractures According to Ipsilateral Fibular Injury Patterns: A Clinical Computed Tomography-Based Mapping Study
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Lim Jae-Hwan
Lee Jun-Young
Kim Ba-Rom
Jo Sueng-Hwan
Cha Dong-Hyuk
Lee Hyo-Jun
Jung Gu-Hee
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Abstract
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Background: Preoperative verification of fracture morphology is essential for determining the definitive fixation strategy in the management of a pilon fracture. This study aimed to determine the correlation between fibular injury patterns and fracture morphologies and introduce clinical implications.
Methods: Computed tomography scans of 96 pilon fractures were retrospectively analyzed and divided into three types: intact fibula, simple fracture, and multifragment fracture. The principal fracture line and comminution zones were illustrated on a plafond template and diagrammatized on a 6 × 6 grid using PowerPoint software as fracture mapping. Correlations between fibular injury patterns and fracture morphologies, including comminution zones and principal fracture lines, were analyzed.
Results: The thickest comminution zone was most often located in the anterolateral quadrant. According to fibular injury patterns, the comminution zone of the multifragment group was placed two grids more lateral than that of other groups. Lateral exits of the principal fracture line in the multifragment group were much more concentrated within the fibular incisura.
Conclusions: In pilon fractures, a more complex fibular fracture pattern was related to the valgus position. Moreover, the articular fracture pattern of pilon fractures differed according to coronal angulation and fibular fracture pattern. These differences should influence the operative approach and placement of the plate.
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KEYWORD
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Fibular, Ankle joint, Pilon Fracture, Fracture pattern, Fracture mapping
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