In this study, Dr. Marx and colleagues investigated how the shape of the tibia (the shinbone) affects the risk of meniscal injury when the anterior cruciate ligament (ACL) tears. Specifically, they looked at the lateral posterior tibial slope, which is the backward tilt of the outer part of the tibial surface where the thighbone rests. Using MRI data from patients with acute, noncontact ACL tears, the researchers found that a steeper lateral slope was linked to a higher likelihood of injury to the lateral meniscus, a key shock-absorbing structure in the knee. These findings suggest that knee bone shape plays an important role in both ACL injury risk and associated meniscal damage, which may help guide future prevention and treatment strategies.