Anterior sternoclavicular ligament

Anterior sternoclavicular ligament (shown in red) connects the sternum and clavicle.

The Anterior Sternoclavicular Ligament is a band of fibrous tissue that connects the anterior surface of the sternum to the clavicle. It is one of the four main ligaments that stabilize the sternoclavicular joint, the others being the posterior sternoclavicular ligament, the interclavicular ligament, and the costoclavicular ligament.

Anatomy

The anterior sternoclavicular ligament is a broad, thin band that covers the anterior surface of the sternoclavicular joint. It extends from the upper part of the manubrium sterni to the sternal end of the clavicle. The ligament is composed of parallel fibers that run diagonally from the sternum to the clavicle.

Function

The primary function of the anterior sternoclavicular ligament is to stabilize the sternoclavicular joint and prevent anterior displacement of the clavicle. It also helps to limit excessive movement of the joint during shoulder movements.

Clinical Significance

Injury to the anterior sternoclavicular ligament can result in instability of the sternoclavicular joint, leading to pain and limited shoulder movement. Treatment typically involves rest, physical therapy, and in severe cases, surgery.

See Also

• Sternoclavicular joint
• Ligament
• Clavicle
• Sternum