Specialty Day 2020 - Paper Presentations-Change in the C1-M2 Distance after Simulated Purely Ligamentous Lisfranc Injury as Evaluated by Weightbearing CT Scans

Change in the C1-M2 Distance after Simulated Purely Ligamentous Lisfranc Injury as Evaluated by Weightbearing CT Scans_ A Mat

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Video Transcription

Video Summary

In this video, Yantrasit Panich discusses the findings of a study on leaf fang injuries. The study aimed to determine the widening between the C1 and M2 ligaments in different weight-bearing conditions using weight-bearing CT scans. The research involved 12 pairs of cadaver knees and sequentially dissected the ligaments to evaluate the diagnosis of instability. The results showed that widening of the interosseous and plantar ligaments was observed in partial and full weight-bearing conditions. The study also identified external rotation displacement of the M2 ligament under various weight-bearing conditions. The findings suggest that CT scans can help detect ligament injuries, and widening exceeding one millimeter may indicate ligamentous complex injury.

Asset Subtitle

Yantarat Sripanich, MD; Maxwell Weinberg, BSc; Chamnanni Rungprai, MD; Charles L. Saltzman, MD; Alexej Barg, MD

Keywords

leaf fang injuries

weight-bearing CT scans

ligament widening

cadaver knees

ligamentous complex injury