Acute atlanto-axial post-operative subluxation following posterior C1/2 fusion

Reference ranges for atlantodental interval in adults and its variation with age and gender in a large series of subjects on multidetector computed tomography

“…Because of inaccurate landmark identification on plain radiography and insufficient understanding of atlanto-dental joint morphology, many values have been proposed and used as the diagnostic criteria of atlanto-dental joint dislocation in adults, such as 2.5 mm, 3 mm, and 3.5 mm in the literature (2,(22)(23)(24)(25)(26)(27)(28)(29)(30)(31)(32). As confirmed from our data, the ADI decreases with increasing age, therefore, different reference ranges of atlantoaxial subluxation or dislocation should be used for different ages, e.g.…”

Atlantoaxial wiring hardware failure resulting in intracranial hemorrhage and hydrocephalus: illustrative case

“…Complications of Brooks posterior wiring are numerous and well described in the literature. 2,3,5,[13][14][15][16][17][18][19][20][21][22] Their occurrence can be perioperative, early postoperative, or late postoperative. The most common complication is nonunion, reaching 30% in some series.…”

“…1 Atlantoaxial sublaminar wiring-related complications have been described, including hardware failure, nonunion, durotomy, spinal cord injury, and brain injury. 8,[13][14][15][16][17][18][19][20][21][22] We describe a rare but serious and potentially fatal complication of atlantoaxial sublaminar wiring failure with an atypical presentation of a progressively comatose patient with posterior fossa and upper spinal subdural and subarachnoid hemorrhage resulting in acute hydrocephalus. We also review the literature of spinal hardware failure in relation to subarachnoid hemorrhage.…”