Johnson D P, Fergusson C M
J Bone Joint Surg Br. 1986 Nov;68(5):698-701. doi: 10.1302/0301-620X.68B5.3782225.
Atlanto-axial rotatory fixation is one of a spectrum of rotatory abnormalities of the atlanto-axial joint. Rotatory fixation without anterior displacement of the atlas (Type I) has been reported in only a few cases in which there has been a prolonged interval between injury and diagnosis. The majority of these cases eventually required cervical fusion for persistent deformity or instability. Two cases are presented in which this diagnosis was made early with the aid of rotated odontoid radiographs, tomography and computerised axial tomography. Treatment by a short period of halter traction achieved reduction and early return of function. The authors conclude that early recognition and treatment of this rare condition may prevent the subsequent deformity and instability for which cervical fusion has been required.
寰枢椎旋转固定是寰枢关节一系列旋转异常中的一种。寰椎无向前移位的旋转固定（I型）仅在少数病例中有报道，这些病例在损伤与诊断之间存在较长时间间隔。这些病例中的大多数最终因持续性畸形或不稳定而需要进行颈椎融合术。本文介绍了两例借助旋转齿状突X线片、体层摄影术和计算机断层扫描早期做出该诊断的病例。通过短期的颈带牵引治疗实现了复位并使功能早期恢复。作者得出结论，对这种罕见病症的早期识别和治疗可能预防后续需要进行颈椎融合术的畸形和不稳定。
