Atlanto- occipital dislocation occurs 5 times more commonly in children than adults, and is believed to be caused by hyperextension. High density material is demonstrated posterior to the dens and would be in keeping with haematoma which extends intracranially. Journal of neurosurgery. Pathology The tectorial membrane and alar ligaments provide most of the stability to the atlanto- occipital jo. Atlanto- occipital dislocation ( AOD) is a devastating condition that frequently results in prehospital cardiorespiratory arrest and accounts for 15% of fatal spinal trauma. Atlanto- occipital dissociation injuries are severe and include both atlanto- occipital dislocations and atlanto- occipital subluxations.
Unstable spine fractures; Tectorial membrane and alar ligaments provide stability to atlanto- occipital joint Injury or laxity of these ligaments can lead to subluxation or dislocation. Mar 18, · Abstract. Atlanto occipital dissociation. Reference: Traynelis VC, Marano GD, Dunker RO, Kaufman HH. Atlanto- occipital dissociation.
No cervical spine fracture is identified. How can the answer be improved? 1986; 65( 6) : 863- 70. Traumatic atlanto- occipital dislocation. The major dural venous sinuses are located just below the external occipital protuberance and are at risk of penetrative injury during occipitocervical fusion.
ETT and NGT present and therefore prevertebral soft tissues cannot be assessed. However, despite overall improved outcomes,. Atlanto- occipital dislocation ( AOD) is being increasingly recognized as a potentially survivable injury as a result of improved prehospital management of polytrauma patients and increased awareness of this entity, leading to earlier diagnosis and more aggressive treatment.