2023 Volume 31 Issue 1 Pages 117-121
Introduction: Mechanical load causes fractures in different directions in case of lumbar spondylolysis. In this study, we compared the angle of the fracture line in lumbar spondylolysis cases between baseball and soccer players.
Methods: We assessed 37 lesions of 34 patients with spondylolysis who were baseball or soccer players and were treated conservatively at our hospital between April 2015 and February 2019. The target vertebral body of this study was only L5. The stage was early or progressive stage on axial CT imaging, and stage 1c or 2 on sagittal CT imaging. Statistical analysis was performed using the t-test, and significance was defined as p< 0.05.
Results: The angle of the fracture line on the axial CT image was 18.7±6.3̊in the baseball group and 19.7±12.2̊in the soccer group (p=0.80), and the angle on the sagittal CT image was 77.3±9.4̊in the baseball group and 66.9±9.5̊in the soccer group (p=0.0064), showing a significantly larger angle in the baseball players.
Conclusions: The angle of the fracture line on the sagittal CT image was significantly greater in baseball than soccer players. This is due to the fact that baseball involves more rotational movement than soccer.
