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The costoclavicular ligament is a short, but powerful cone-shaped ligament that connects the inferior margin of the sternal end of the clavicle to the superior margin of the first rib and its associated costal cartilage.
The costoclavicular ligament unites the superior surface of the first rib and its costal cartilage with the inferomedial aspect of the clavicle. This strong thick ligamentous band consists of two sheaths (laminae) which differ in the direction of their fibers.
The costoclavicular ligament (CCL) connects the first rib to the collar bone and is a short, flat but very strong ligament. It is also known as Halsted’s Ligament or the rhomboid ligament due to its shape.
Costoclavicular ligament – attaches the first rib and costal cartilage to the inferior surface of the clavicle. It is the main stabilising force for the joint, resisting elevation of the pectoral girdle.
The costoclavicular ligament helps provide medial clavicle and anterior first rib stability. The interclavicular ligament passes over the sternum to provide medial traction of both clavicles. The inter-articular disc ligament attaches to the first rib and also provides stability of the sternoclavicular joint.
Introduction. Diarthrodial saddle joint incongruous (~50% contact) fibrocartilage (not synovial cartilage) contains an intra-articular disc. Motion. elevation of arm to 90° leads to rotation of the sternoclavicular joint of 30°. Imaging.
The sternoclavicular joint is one of five articulations essential for the function of the upper limb. Several critical structures have an anatomical relationship to the sternoclavicular joint, including the brachiocephalic arterial trunk, internal jugular vein, and common carotid artery.
Emerging from a rough area on the ventral surface of the sternal end of the clavicle is the costoclavicular ligament. The inverted cone-shaped band helps to anchor the clavicle to the axial skeleton by inserting on the costal cartilage of the first rib.
Definition. The costoclavicular ligament is short, flat, strong, and rhomboid in form. Attached below to the upper and medial part of the cartilage of the first rib, it ascends obliquely backward and lateralward, and is fixed above to the costal tuberosity on the under surface of the clavicle.
Sternoclavicular joint (SCJ) instability is a rare condition and results from either a traumatic high energy impact, such as a motor vehicle crash or contact sports injury, or non-traumatically as a result of structural pathology.