Abnormal changes to the posterior ankle labrum on MRI

What is it about?

The transverse ligament in the ankle joint has been described as a labrum-like structure in a previous cadaveric study (we refer to it as the "posterior ankle labrum" in our study). No studies to date have explored the abnormal MRI appearance of this structure. The purpose of this study is to assess the spectrum of abnormal changes related to the posterior ankle labrum on imaging (i.e. MRI), and correlate these findings with other ankle joint findings and patient symptoms.

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Why is it important?

This study is the first to examine the spectrum of abnormal MRI appearances of the posterior ankle labrum and demonstrated a statistically significant association between abnormal labral changes and other ankle joint findings, particularly with imaging findings of posterior ankle impingement. This study suggests that assessing the posterior ankle labrum may have a role in the routine ankle MRI interpretation checklist.