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Acromioclavicular Anatomy

  • Trapezoid ligament in men has a mean length of 1.61 +/- 0.52 and a width of 1.58 +/-0.69 cm.5  Orgin = coracoid process, anterior and lateral to the attachment of the conoid ligament. Insertion = a rough line on the undersurface of the clavicle extending anteriorly and laterally from the conoid tubercle. 
  • Conoid ligament in men has a mean length of 1.225 +/- 0.658 cm and width of 0.737 +/-0.148 cm.5  Origin = the posteromedial side of the base of the coracoid process. Insertion = conoid tubercle on the posterior undersurface of the clavicle.  The conoid tubercle is located at the apex of the posterior clavicular curve, which is at the junction of the lateral third of the flattened clavicle with the medial two thirds of the triangular-shaped shaft.  

Acromioclavicular Joint Anatomy

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