Interclavicular ligament

Interclavicular ligament

The Interclavicular ligament is a fibrous band that connects the clavicles (collar bones) across the upper part of the manubrium of the sternum (breastbone). It is a part of the pectoral girdle and plays a crucial role in maintaining the stability of the shoulder joint.

Etymology

The term "Interclavicular" is derived from the Latin words "inter" meaning between, and "clavicula" meaning little key, referring to the shape of the clavicle.

Anatomy

The Interclavicular ligament is a strong fibrous band that extends from the sternal end of one clavicle to that of the other, passing over the sternum. It is broader in the middle than at the ends, and intimately blended with the sternoclavicular joint capsule.

Function

The primary function of the Interclavicular ligament is to prevent excessive lateral and superior displacement of the clavicle, thereby maintaining the stability of the sternoclavicular joint. It also helps in transmitting the weight of the upper limb to the axial skeleton.

Clinical significance

Injury to the Interclavicular ligament can lead to sternoclavicular joint dislocation. This can result in pain, swelling, and limited movement of the shoulder. Treatment usually involves rest, ice, compression, and elevation (RICE), along with physical therapy.

Related terms

• Ligament
• Clavicle
• Sternum
• Sternoclavicular joint
• Pectoral girdle

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