Atlanto-occipital dislocation, orthopedic decapitation, or internal decapitation describes ligamentous separation of the spinal column from the skull base. It is possible for a human to survive such an injury; however, 70% of cases result in immediate death .

Nov 17, 2022 · Atlanto-occipital dissociation injuries are severe and include both atlanto-occipital dislocations and atlanto-occipital subluxations. The tectorial membrane and alar ligaments provide most of the stability to the atlanto-occipital joint, and injury to these ligaments results in instability due to low inherent osseous stability 3.

Atlanto-occipital disarticulations occur in high-energy impacts and collisions and are associated with aortic laceration in 25% and basilar skull fracture in 21% of such cases. Current restraint systems and motorcycle helmets do not appear to prevent this generally rapidly fatal injury.

Aug 1, 2021 · Traumatic atlanto-occipital dislocation (TAOD), also known as occipital-cervical dislocation, craniocervical dislocation, craniocervical dissociation, or internal decapitation, was first reported in 1908 by Blackwood in regard to a patient with complete neurological deficit with a postmortem analysis reporting an occiput dislocated forward on ...

Traumatic atlanto-occipital dislocation (AOD) results from high energy trauma and is an uncommon and usually fatal injury due to an injury to the cervicomedullary junction. Recently, improved prehospital management, early diagnosis and effective treatment led to increasing reports of survival.

AOD is a highly unstable craniocervical injury, resulting from damage to ligaments and/or bony structures connecting the skull to the cervical spine. It is historically associated with significant neurological morbidity and mortality secondary to brainstem and upper cervical spinal cord injury.

Introduction: Atlanto-occipital dissociation (AOD) is a rare and unstable injury of the craniocervical junction, associated with very high morbidity and mortality. The most common cause of this injury is high energy trauma with hyperextension of the cranium, such as car accidents.

See the NAEMSP National Guidelines for Spinal Immobilization. ↑ Riascos R, Bonfante E, Cotes C et-al. Imaging of Atlanto-Occipital and Atlantoaxial Traumatic Injuries: What the Radiologist Needs to Know. Radiographics. 2015;35.

Sep 1, 2022 · Atlanto-occipital dissociation (AOD) has historically been considered a fatal injury. Recent small case series, however, have suggested that AOD injuries have become increasingly survivable. There has not been an adequately powered study that confirms this.

Nov 1, 2024 · Atlanto-occipital dissociation (AOD) is an extremely common injury but often fatal. In a systematic review from 2010, AODs were present in almost 20% of blunt trauma fatalities. It is an injury many patients do not survive; therefore, few …