Morphologic Factors Associated With Secondary Anterior Cruciate Ligament Injury After Primary Anterior Cruciate Ligament Reconstruction

The authors aimed to investigate the relationship between lower-extremity bone morphology and the risk of ipsilateral graft rupture and contralateral ACL injury in patients who underwent primary ACL reconstruction. They found that a smaller medial tibial spinal height was significantly associated with a higher risk of graft rupture, while greater tibial torsion correlated with an increased risk of contralateral ACL injury. These findings highlight the importance of specific morphological factors in predicting secondary ACL injuries post-reconstruction.