Altun Idiris, Yuksel Kasim Zafer
Department of Neurosurgery, Kahramanmaras Sutcu Imam University Medical Faculty, Kahramanmaras, Turkey.
Turk J Emerg Med. 2016 Aug 18;17(1):22-24. doi: 10.1016/j.tjem.2016.08.001. eCollection 2017 Mar.
Os odontoideum is a separate odontoid process from the body of the axis. It is the most common anomaly of the odontoid process. Patients with this condition can be asymptomatic or present with a wide range of neurological dysfunctions. It may cause cervical instability, atlantoaxial dislocation and myelopathy. This anomaly can mimic Type I and II odontoid fractures. There is a role for conservative treatment of an asymptomatic incidentally found, radiologically stable and non-compressive os odontoideum. However, surgical treatment has a definitive role in symptomatic cases. In this study, the case is presented of a 31 year-old male patient with neck pain who was diagnosed with incidental os odontoideum. The diagnosis of acute odontoid fracture was discarded in this case as the radiological findings were of a characteristic cortex with smooth contours, and there was no history of recent trauma, sclerosis or hypertrophy of the anterior tubercle of the atlas.
齿突游离小骨是与枢椎体分离的齿突。它是齿突最常见的异常情况。患有这种病症的患者可能无症状，也可能出现各种神经功能障碍。它可能导致颈椎不稳、寰枢椎脱位和脊髓病。这种异常情况可类似于I型和II型齿突骨折。对于偶然发现的无症状、放射学稳定且无压迫性的齿突游离小骨，保守治疗有一定作用。然而，手术治疗在有症状的病例中具有决定性作用。在本研究中，报告了一名31岁颈部疼痛男性患者的病例，该患者被诊断为偶然发现的齿突游离小骨。由于放射学表现为皮质轮廓光滑的特征性表现，且无近期创伤史、寰椎前结节硬化或肥大，该病例排除了急性齿突骨折的诊断。
