detethering

noun

1. The removal of a tether“During this 15-year period, 1,176 lumbar spinal surgeries were performed, and the procedures included the following: simple decompression procedures such as micro- or endoscopic discectomy or foraminotomy or decompression of stenosis, arthrodeses (e.g., posterolateral interbody, posterior/transforaminal interbody, and lateral interbody), filum detethering, or syrinx shunting.”