Results. The conservative treatments failed to reduce the atlantoaxial subluxation. We performed a C1 laminectomy and posterior occipitocervical fusion, which successfully relieved his symptoms.

• 结果：经保守治疗寰枢椎半脱位没有成功复位。我们行C1椎板切除术及后侧枕颈融合，成功的缓解了患者的症状。