Occipitoatlantal instability associated with articular tropism

European Spine Journal : Official Publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society
K AbumiK Kaneda

Abstract

The authors report the case of a patient with rotatory posterior subluxation of the occiput on the atlas associated with tropism of the O-C1 articulations. Lateral flexion-extension plain films demonstrated 5 mm of posterior translation of the occiput on the atlas. Tomographs revealed tropism of the O-C1 articulations, and CT scans on extension demonstrated posterior rotatory subluxation of the occiput on the atlas. The patient had no osseous abnormality caudally below the atlantoaxial joint, and underwent posterior occipitoatlantal fusion by wiring. At the 4-year follow-up, the grafted bone had been incorporated, and the patient was completely free from preoperative symptoms. In the present patient, occipitoatlantal instability is presumed to have derived from articular tropism.

Citations

Jun 16, 2010·European Spine Journal : Official Publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society·Yasuhiko TakechiKenji Takagishi
Mar 26, 2015·European Spine Journal : Official Publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society·Tian-Long WuXi-Gao Cheng
Aug 22, 2000·Journal of Manipulative and Physiological Therapeutics·C G Davis

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