Nontraumatic posterior atlantooccipital dislocation associated with atlantoaxial instability

作者：Wu Tian Long; Jia Jing Yu; Chen Wei Cai; He Ding Wen; Cheng Xi Gao^*

来源：European Spine Journal, 2015, 24(S4): S619-S622.

DOI：10.1007/s00586-015-3901-6

• Nontraumatic
• Atlantooccipital joint
• Atlantoaxial joint
• Dislocation

Introduction Nontraumatic posterior atlantooccipital dislocation has only been rarely reported. In the current study, the authors reported an extremely rare case of nontraumatic posterior atlantooccipital dislocation associated with atlantoaxial instability.
Materials and methods A 47-year-old female was referred with a history of neck pain for 5 years. The patient had no history of trauma. The axial rotation of range of motion of the cervical spine was severely restricted. Posterior atlantooccipital dislocation with atlantoaxial instability was confirmed through conventional radiography, computed tomography and magnetic resonance imaging. We performed realignment of the dislocation and posterior occipitocervical (C0-C2) fusion. After the surgery, the patient's symptoms improved significantly and she manifested neurological improvement.
Conclusion To our knowledge, this lesion has not been reported previously. Anomalies of upper cervical spine may have induced this instability.

• 出版日期2015-5
• 单位南昌大学