Posterior Tibial Slope in Adults with Sequelae of Osgood-Schlatter Disease: An MRI Study

Aim: To assess lateral and medial posterior tibial slope (PTS) in skeletally mature patients with sequelae of Osgood-Schlatter disease (OSD) using magnetic resonance imaging (MRI). Material and Methods: A retrospective analysis was performed on the MRI knee exam. The study group comprised 78 adults with recurrent OSD findings, while the control group comprised 78 subjects who were matched for age, sex and side, and who had no osseous, ligamentous or ten-dinous disease. Medial and lateral PTS angles were measured on sagittal T1-weighted images, and group comparisons were made using standard statistical analyses. Results: No significant differences were found between groups regarding demographic variables. Both lateral and medial PTS values were comparable between OSD patients and controls (p > 0.05). Conclusion: In contrast to findings in adolescents, skeletally mature adults with OSD sequelae did not show significant differences in medial or lateral posterior tibial slope compared to matched con-trols. These results suggest that the slope changes that are evident during growth may normalize after maturity, emphasizing the need to differentiate between adolescent and adult OSD when as-sessing biomechanical effects and possible ACL injury risk.