Medial malleolus

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Bone: Medial malleolus
Coronal section through right talocrural and talocalcaneal joints. (Medial malleolus labeled at center left.)
Back of left lower extremity. (Medial malleolus labeled at bottom right.)
Latin m. medialis
Gray's subject #61 259
/ Elsevier

The medial surface of the lower extremity of tibia is prolonged downward to form a strong pyramidal process, flattened from without inward - the medial malleolus.

  • The medial surface of this process is convex and subcutaneous;
  • its lateral or articular surface is smooth and slightly concave, and articulates with the talus;
  • its anterior border is rough, for the attachment of the anterior fibers of the deltoid ligament of the ankle-joint;

The summit of the medial malleolus is marked by a rough depression behind, for the attachment of the deltoid ligament.

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This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.