In cervical spondylotic myelopathy combined with accretion-DPLL or ossification-DPLL, complete decompression can be obtained by isolating the accretion and the ossification-chondrification of DPLL.

• 合并增生粘连型和增生骨化型患者，有限切除后纵韧带，孤立粘连部分和骨软骨化部分的后纵韧带，同样可以达到彻底减压。