External calcaneoastragaloid ligament

External Calcaneoastragaloid Ligament

The external calcaneoastragaloid ligament is an important ligament located in the foot. It plays a crucial role in maintaining the stability and proper alignment of the calcaneus bone (heel bone) and the astragalus bone (ankle bone). In this article, we will discuss the anatomy, function, and clinical significance of the external calcaneoastragaloid ligament.

Anatomy

The external calcaneoastragaloid ligament is also known as the lateral calcaneocuboid ligament. It is a strong fibrous band that originates from the lateral side of the calcaneus bone and inserts into the lateral side of the cuboid bone. The ligament is positioned on the outer side of the foot, connecting the heel bone to the bone located in front of it.

Function

The main function of the external calcaneoastragaloid ligament is to provide stability to the lateral side of the foot. It helps to prevent excessive inversion (inward rolling) of the foot, which can lead to ankle sprains and other injuries. The ligament also assists in maintaining the proper alignment of the calcaneus and astragalus bones during weight-bearing activities.

Clinical Significance

Injuries to the external calcaneoastragaloid ligament can occur due to trauma or repetitive stress. These injuries are commonly seen in athletes involved in sports that require quick changes in direction or jumping, such as basketball or soccer. Sprains or tears of the ligament can result in pain, swelling, and instability of the foot.

Diagnosis of external calcaneoastragaloid ligament injuries is typically done through a physical examination and imaging studies, such as X-rays or MRI scans. Treatment options may include rest, ice, compression, elevation (RICE), immobilization with a brace or cast, physical therapy, and in severe cases, surgical repair.

See Also

• Calcaneus
• Astragalus
• Ankle Sprain