• Pietro Spennato, Giancarlo Nicosia, Armando Rapanà, Domenico Cicala, Tiziana Donnianni, Silvana Scala, Ferdinando Aliberti, and Giuseppe Cinalli.
• Neurosurgery Department, AORN Santobono-Pausilipon-Annunziata Children's Hospital, Naples, Italy. Electronic address: pierospen@gmail.com.
• World Neurosurg. 2015 Nov 1;84(5):1494.e7-12.

BackgroundGrisel syndrome is a nontraumatic rotatory subluxation of the atlantoaxial joint, following nasopharyngeal inflammation or ear, nose, and throat (ENT) procedures. The syndrome should be suspected in cases of persistent neck pain and stiffness, especially after ENT surgical procedures. The primary treatment of early detected Grisel syndrome is conservative. If conservative treatment fails to achieve a stable reduction or it is followed by neurologic symptoms, arthrodesis of the first and second cervical vertebrae is indicated. We report the case of a 9-year-old boy who developed Grisel syndrome after adenoidectomy and was treated with C1-C3 internal fixation and fusion.Case DescriptionA 9-year-old boy was referred to our hospital with a 3-month history of painful torticollis, which appeared 4 days after adenoidectomy. The patient underwent a neuroimaging study that documented the presence of atlantoaxial rotatory subluxation. The patient underwent C1-C3 internal fixation and fusion, using lateral masses and laminar and pars interarticularis screws. On the third postoperative day he was mobilized with a rigid collar. Postoperative computed tomography scans showed the resolution of rotational deformity and a solid fusion.ConclusionEarly treatment of Grisel syndrome is of utmost importance to avoid neurologic complications and surgical intervention. In a patient with torticollis following ENT procedures, Grisel syndrome should be always suspected. In case of failure of conservative treatment or in case of delayed diagnosis, rigid C1-C2 or C1-C2-C3 fixation is a straightforward and valid surgical technique, even in children, because it provides immediate spinal stability in all planes at the atlantoaxial complex, avoiding the need for prolonged rigid external bracing.Copyright © 2015 Elsevier Inc. All rights reserved.

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