Sherburn E W, Day R A, Kaufman B A, Park T S
Department of Neurosurgery, St. Louis Children's Hospital, Washington University School of Medicine, Mo., USA.
Pediatr Neurosurg. 1996 Nov;25(5):256-9. doi: 10.1159/000121135.
A case is presented illustrating the usefulness of computerized tomography (CT) with 3-dimensional (3-D) reconstruction for evaluation of a subdental synchondrosis fracture in a child. Odontoid fractures in children less than 7 years of age occur at the subdental synchondrosis and are typically diagnosed with plain x-rays. However, a delay in diagnosis is common as these injuries may not be appreciated on initial roentgenographic evaluation. The authors present a case of a 2-year-old boy with a subdental synchondrosis fracture secondary to trauma. In this patient, plain x-ray and conventional axial CT failed to definitively elucidate the child's injuries; however, the use of CT with 3-D reconstruction fully delineated the injury. The use of CT with 3-D reconstruction in evaluating children with subdental synchondrosis fractures is a valuable tool for diagnosis. The treatment of synchondrosis fractures of the odontoid process in children is immobilization of the cervical spine.
本文介绍了一例通过计算机断层扫描（CT）三维（3-D）重建来评估儿童齿突下软骨结合处骨折的病例，展示了其有用性。7岁以下儿童的齿突骨折发生在齿突下软骨结合处，通常通过普通X线片诊断。然而，由于这些损伤在初次X线检查时可能不明显，诊断延迟很常见。作者报告了一例2岁男孩因外伤导致齿突下软骨结合处骨折的病例。在该患者中，普通X线片和传统轴向CT未能明确阐明患儿的损伤；然而，CT三维重建的应用完整地描绘了损伤情况。CT三维重建在评估儿童齿突下软骨结合处骨折方面是一种有价值的诊断工具。儿童齿突软骨结合处骨折的治疗方法是颈椎制动。
