Kanakamedala AC, et al. - In order to assess the link between lateral femoral notch (LFN) depth and both quantitative measures of rotatory knee instability and the incidence of lateral meniscus tears, this study was implemented, presuming that greater LFN depth would be correlated with increased rotatory instability, quantified by lateral compartment translation and tibial acceleration during a quantitative pivot shift test, and incidence of lateral meniscus tears. Findings demonstrated that LFN depth on conventional radiographs or magnetic resonance images (MRI) was not correlated with quantitative measures of rotatory instability. In addition, data showed an association of concomitant lateral meniscus injury with significantly greater LFN depth. Overall, it was concluded that LFN depth should not be used as an indicator of excessive rotatory instability, but may be an indicator of lateral meniscus injury in ACL-injured patients.