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. 2020 Mar 24;9(4):e541–e547. doi: 10.1016/j.eats.2020.01.003

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© 2020 by the Arthroscopy Association of North America. Published by Elsevier.

This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

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Fig 2 — Creation of the AM and AAM portals (left ankle). (A) The ankle is positioned neutrally. The AM portal is created medial to the anterior tibial tendon (blue rectangle) and slightly proximal to the joint line.¹¹^,¹⁶^,¹⁸ A 30° 2.7- or 4.0-mm-diameter arthroscope is introduced through the AM portal. The medial gutter is viewed with the ankle in a neutral or slightly dorsiflexed position. (B) After a needle is inserted into the portal site to confirm accessibility to the ATTL talar and tibial footprints, the AAM portal is created. The portal is usually created approximately 10 to 15 mm anteroinferior to the anterior colliculus of the MM. (Patient 1 is shown in both panels.) (AAM, accessory anteromedial; AM, anteromedial; ATTL, anterior tibiotalar ligament; MM, medial malleolus.)