Abstract
The AARD is related to an extreme rotation of the cervicaloccipital hinge following an accidental distraction of the spine. It often occurs in children related to ligament laxity of the cranio-spinal junction. It is rarely encountered in adults, in general, in a context of violent trauma causing a ligament injury. Only about 20 cases have been reported in the literature [1]. The particularity of this entity is its purely rotatory mechanism, which is often without an associated bone fracture. A situation that can make diagnosis difficult and require a trained physician for clinical and radiological diagnosis. The purpose of this review is to help the young orthopedics and radiologists understand this entity, become familiar with the imaging appearance in CT and discuss patient care procedures.
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