Posterior Percutaneous Transpedicular Endoscopic Approach for Treating Single-Segment Cervical Myelopathy

Figure 4

(a) Sagittal MRI scan showing a severe compression of the C5-C6 cervical segment. (b) Axial T2-weighted MRI of the C5-C6 cervical segment. (c) Preoperative CT myelography image showing an osteophyte compressing the lateral portion of the spinal cord. (d) Reconstructed parasagittal CT myelography image showing compression of a mixed type. (e, f) Postoperative sagittal and axial MRI scan showing total decompression. (g) Postoperative CT scan showing partial removal of the lateral mass and pedicle and removal of the osteophyte. (h) 3D reconstruction showing a hole in the lateral mass. Note that the facet joint is intact. (i, j) Postoperative sagittal and axial MRI scans showing no herniated disc at 12 months postoperatively. (k) CT scan at 12 months postoperatively showing that the pedicle and lateral mass defects are obviously decreased. (l) 3D reconstruction showing that the hole in the lateral mass is dramatically decreased compared with its size immediately postoperatively.

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)

(i)

(j)

(k)

(l)