Torticollis due to atlanto-axial rotatory fixation following general anaesthesia.

Atlanto-axial rotatory fixation is uncommon, but should be suspected in any patient developing a torticollis during the recovery period of an operation performed on the head and neck under general anaesthesia. The present case report shows that the condition can occur in adults as well as children. A high degree of suspicion is required to instigate appropriate imaging. CT provides unequivocal proof and will lead to early successful treatment.