Figure 7 A typical case: case 3. (A) Cervical spine magnetic resonance imaging (MRI) showed no apparent disc herniation in segments C6/C7. (B) Coronal MRI of 3-dimensional fast-field echo with water-selective excitation (CMRI) showed foraminal stenosis at the left C6/C7 level (blue arrow). (C) Exposure of the V-point. (D, E) Pictures during endoscopic surgery. (F) Never root decompression performed. (G) Postoperative computed tomography image with appropriate windowing (blue arrow). (H) Postoperative CMRI showed good decompression of the left C7 nerve root (blue arrow). (I) Postoperative small incision. Vue PACS, v12.2.6, Philips.