Comparison of Transforaminal Percutaneous Endoscopic Lumbar Discectomy with and without Foraminoplasty for Lumbar Disc Herniation: A 2-Year Follow-Up

Figure 3

Imaging data during surgeries. (a) The tip of the guide bar lay at the posterior rim of the upper endplate of the SAP facet of the distal vertebrate in the lateral view. (b) The tip of the guide bar lay at the medial pedicle line in the anterior-posterior view. (c) Cutting SAP with a trephine under endoscope. (d) Removing the herniated lumbar disc mass under endoscope during procedure. (e) The operation area after the herniated mass was removed. SAP = superior articular process, NRT = nerve root.

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