![]() The risk factor for retraction around the Z axis was the number of rib fractures, and the risk factor for depression around the Y axis was scapula fracture. The risk factors for shortening and displacement included right-sided fracture, male sex, and multifragmentary type. The magnitude of anterorotation around the X axis was greater than the magnitude of retraction around the Z axis and depression around the Y axis. There was a strong correlation between shortening and displacement. The variables found to increase the risk of rotation deformity were the number of rib fractures (p = 0.001) and scapula fracture (p = 0.025). The variables found to increase the risk of shortening and displacement were right-sided fracture (p = 0.037), male sex (p = 0.015), and multifragmentary type (p = 0.020). The correlation coefficient between the change in length and the displacement was − 0.724 (p < 0.001). The Euler angles in the Z-Y-X sequences were -1 ± 8, 1 ± 8, and − 8 ± 13 degrees. The average change in length was − 5.3 ± 8.3 mm. The risk factors were evaluated using univariable analysis and multiple regression analysis. The correlation between the parameters was evaluated with the Pearson correlation coefficient. The rotation deformities were assessed using the Euler angles. The displacement was assessed using the distance between the fracture midpoints. The change in length was assessed using the length of the endpoint line. Five parameters were used to analyze the deformities: change in clavicle length, fracture displacement, and fragment rotation around the X, Y, Z axes. The computed tomography images of 100 patients who sustained a clavicle fracture were included. The goal of this study was to investigate the radiographic parameters of fracture deformities in a three-dimensional space and to identify the risk factors for deformities. Although minimally invasive surgeries have gained popularity in many orthopaedic fields, minimally invasive approaches for diaphyseal clavicular fracture have not been widely performed, which is attributed to difficulties in performing a closed reduction of fracture deformities of a curved bone in a three-dimensional space.
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