The deep anterior tibiotalar component connects the anterior colliculus of the medial malleolus to the anteromedial talar neck, providing the anterior deep medial ankle constraint.
Resists anterior talar displacement from the medial side, provides the anterior component of the deep medial ankle stability.
The anterior deep deltoid limits anterior talar displacement — its disruption combined with ATFL injury produces more significant global anterior ankle instability. Anteromedial ankle arthroscopy portals must avoid this structure.
Global anterior ankle instability from combined lateral and medial anterior ligament disruption, assessed by anterior drawer test and managed by comprehensive ligament reconstruction.
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