coracoclaviculare

Coracoclaviculare, or ligamenti coracoclaviculares, refers to a pair of strong ligaments that connect the coracoid process of the scapula to the clavicle. These ligaments constitute the principal suspensory linkage between the upper limb and the axial skeleton at the acromioclavicular joint. The two components are the conoid ligament and the trapezoid ligament, each with a distinct orientation and attachment pattern.

Anatomy and attachments: The conoid ligament runs from the coracoid process to the clavicle in a medial, more vertical direction, while the trapezoid ligament runs from the coracoid to a more lateral, horizontal area of the clavicle. Together, they anchor the clavicle to the scapula and limit excessive motion at the acromioclavicular joint. They play a key role in suspending the scapula and transmitting load from the upper limb to the axial skeleton.

Function and clinical relevance: The coracoclavicular ligaments provide vertical stability to the shoulder by preventing superior displacement of the clavicle and helping to stabilize the acromioclavicular joint during arm movements. Injury to these ligaments is a central component of acromioclavicular joint dislocation (shoulder separation). Treatment ranges from conservative management for partial tears to surgical reconstruction for complete tears or high-grade injuries. Imaging and clinical assessment focus on AC joint alignment, with radiographs assessing joint space and clavicular position.