Neglected Traumatic Atlantoaxial Rotatory Dislocation in Adult.

Atlantoaxial rotatory dislocations (AARD) are common in the pediatric population and rarely seen in adults. We describe a case of neglected AARD and subsequent management. A 25-year-old man developed a Fielding type 1 AARD following a road traffic accident. He was managed conservatively for 1.5 months before being referred to us. The patient underwent surgery 1.5 months after the accident. Closed reduction failed, and C1-2 fixation with the Harms technique was performed after intraoperative reduction, resulting in correction of deformity. Delay of treatment makes intraoperative reduction more difficult and increases the possibility of the chronic permanent change of neck muscles and ligaments. Hence, a high index of suspicion with a thorough clinical examination and judicious use of radiological investigations is paramount to the appropriate management of such cases. ©International Society for the Advancement of Spine Surgery 2019.