Howeer, the absence of impaired deglutition in the control group suggests that a local phenomenon must be causatie of swallowing disturbances following anterior cerical discectomy and fusion.

• 对照组中并未出现吞咽困难，表明某些局部因素肯定是前路颈椎间盘切除术及融合术后出现吞咽困难的原因。