Alar ligament
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The alar ligaments join the lateral margins of the sloping upper posterior margin of the dens of C2 to the lateral margins of the foramen magnum (adjacent to the occipital condyles) and lie on either side of the apical ligament. They The may be oblique or vertical and are thickest at the occipital attachment. They are paired ligaments that are very strong and limit axial rotation and contalateral lateral flexion of the head. With the transverse band of the cruciform ligament, they are the primary stabiliser of the atlanto-axial joint2.
-<p>The <strong>alar ligaments </strong>join the lateral margins of the sloping upper margin of the dens of <a title="C2" href="/articles/axis-c2">C2</a> to the lateral margins of the <a title="Foramen magnum" href="/articles/foramen-magnum">foramen magnum</a> (adjacent to the <a title="Occipital bone" href="/articles/occipital-bone">occipital condyles</a>) and lie on either side of the <a title="Apical ligament" href="/articles/apical-ligament">apical ligament</a>. They are paired ligaments that are very strong and limit rotation of the head.</p>- +<p>The <strong>alar ligaments </strong>join the lateral margins of the sloping upper posterior margin of the dens of <a href="/articles/axis-c2">C2</a> to the lateral margins of the <a href="/articles/foramen-magnum">foramen magnum</a> (adjacent to the <a href="/articles/occipital-bone">occipital condyles</a>) and lie on either side of the <a href="/articles/apical-ligament">apical ligament</a>. The may be oblique or vertical and are thickest at the occipital attachment. They are paired ligaments that are very strong and limit axial rotation and contalateral lateral flexion of the head. With the transverse band of the <a title="Cruciform ligament" href="/articles/cruciate-ligament-of-the-atlas">cruciform ligament</a>, they are the primary stabiliser of the <a title="Atlanto-axial joint" href="/articles/atlanto-axial-articulation">atlanto-axial joint</a> <sup>2</sup>.</p>
References changed:
- 2. Offiah CE, Day E. The craniocervical junction: embryology, anatomy, biomechanics and imaging in blunt trauma. Insights into imaging. 8 (1): 29-47. <a href="https://doi.org/10.1007/s13244-016-0530-5">doi:10.1007/s13244-016-0530-5</a> - <a href="https://www.ncbi.nlm.nih.gov/pubmed/27815845">Pubmed</a> <span class="ref_v4"></span>
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