Sternoclavicular joint

Sternoclavicular joint is a synovial joint where the clavicle (collarbone) meets the sternum (breastbone). It is one of the four joints that complete the shoulder.

Anatomy

The sternoclavicular joint is composed of two bones: the sternal end of the clavicle and the manubrium of the sternum. This joint is protected by the joint capsule and is reinforced by the anterior and posterior sternoclavicular ligaments.

Function

The sternoclavicular joint allows for the extensive mobility of the shoulder. It is capable of three types of movement: elevation and depression, protraction and retraction, and axial rotation.

Clinical significance

Injuries to the sternoclavicular joint are relatively rare but can be serious. They can occur due to direct trauma, such as a blow to the chest, or indirect trauma, such as a fall onto an outstretched hand.

See also

• Clavicle
• Sternum
• Shoulder
• Synovial joint

References

Sternoclavicular joint Resources
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