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

Figure 3

Diagram of the posterior transpedicular approach for PECD. (a) The high bright area located in the lateral mass is the entry point. (b) The medial portion of the pedicle was drilled; then, the diamond burr was used to drill the osteophyte (blue area) located in the posterior wall. (c) Drilling was continued in some of the posterior wall to reach the medial-ventral region of the spinal cord. (d) Forceps were used to grasp the herniated nucleus pulposus.

(a)

(b)

(c)

(d)