Figure 5 A typical case: case 1. (A-D) Cervical spine magnetic resonance imaging (MRI) showed no significant cervical spinal canal stenosis in segments C4/C5, C5/C6, C6/C7, and C7/T1. (E) Coronal MRI of 3-dimensional fast-field echo with water-selective excitation (CMRI) showed disc herniation at the left C7/T1 level, with nerve root filling defects (blue arrow). (F) Preoperative CT imaging. (G) After pre-operative localization by CMRI imaging, insertion of a working cannula. (H) Exposure of the V-point (arrow). (I) Using a high-speed drilling to remove the vertebral plate and articular process around the V-point. (J) Never root decompression performed, with good dural pulsation. (K) Postoperative computed tomography image with appropriate windowing (blue arrow). (L) Postoperative CMRI showed good decompression of the left C8 nerve root (blue arrow). Vue PACS, v12.2.6, Philips.