Letter to the Editor

Comment on “Effective Range of Percutaneous Posterior Full-Endoscopic Paramedian Cervical Disc Herniation Discectomy and Indications for Patient Selection”

Figure 1

The lateral border of the dural sac and the peak of the herniated disc (DSPHD; red line) and the lateral border of the dural sac and the intersection of the dural sac and the medial border of the herniated disc (DSMHD; blue line) (a) and an MRI image (b). The medial margin of the uncovertebral joint was marked by the red arrow.
(a)
(b)