Guillaume Mercy, Presenter: Nothing to Disclose

Audrey Massein, Abstract Co-Author: Nothing to Disclose

Jean-Louis Brasseur, Abstract Co-Author: Nothing to Disclose

Philippe A. Grenier MD, Abstract Co-Author: Nothing to Disclose

The deltoid ligament (also called medial collateral ligament) is a complex, crucial stabilizing structure of the hintfoot and midfoot. It can be basically divided into a superficial layer and a deep layer. The ligament can also be theorically divided into three functional parts: anterior, middle and posterior. Both anatomy and function explain pathological findings after a sprain: - Injury of the deep layer often occurs as it is pinched between medial malleolus and talus during a varus sprain. - Injury of one of the three functional parts results from ligament stretching during a valgus sprain and depends on the degree of flexion of the ankle during the trauma. Ultrasonographic study of each part of the ligament in a tensioned position is necessary to avoid missing any injury after a sprain. The normal incidental absence of the anterior part of the ligament and the normal stacked appearance of the deep layer are the most common pitfalls. Ultrasonography is helpful to identify a healing complication including impingement and instability.  

Anatomy Biomechanics Ultrasonography: achievement, normal aspects and pitfalls Ultrasonographic pathological aspects: - sprain - delayed complications including impingement and instability Advantages of ultrasonography versus other modalities including MRI 

http://abstract.rsna.org/uploads/2014/14014938/14014938_5tud.pdf

Mercy, G, Massein, A, Brasseur, J, Grenier, P, Ultrasonography of the Deltoid Ligament of the Ankle.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14014938.html