2021 AOSSM-AANA Combined Annual Meeting Recordings-Investigating the Chronology of Meniscus Root Tears: Do Medial Meniscus Posterior Root Tears Cause Extrusion or the Other Way Around?

Investigating the Chronology of Meniscus Root Tears: Do Medial Meniscus Posterior Root Tears Cause Extrusion or the Other Way Around?

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Video Transcription

Video Summary

The video discusses the biomechanical role of the menisciotibial (MT) ligament and its association with meniscus extrusion and subsequent root tears. The study reviewed serial MRIs from 2010 to 2020, focusing on patients with extrusion and root tears. The results showed that MT ligament disruption and extrusion were present prior to root tear in all patients. Extrusion progressed in 96% of knees, and there was a modified outer ridge grade progression. About a third of the patients eventually underwent arthroplasty. The study suggests that MT ligament disruption and extrusion are early predisposing events to meniscus root tear, highlighting the importance of addressing these factors in treatment. The summary is based on a video transcript and no credits are mentioned.

Asset Caption

Mario Hevesi, MD

Keywords

biomechanical role

menisciotibial ligament

meniscus extrusion

root tears

arthroplasty