This surgical technique involves the removal of the upper half of the cervical laminae and was performed in 17 patients between 1997 and 2005 with a mean follow-up of 55 months.

• 方法：这项手术技术是指对上半颈椎椎板的切除，在1997年和2005年期间，17名患者行此手术治疗，平均随访55个月。