Percutaneous Endoscopic Lumbar Discectomy for L5–S1 Disc Herniation: Transforaminal versus Interlaminar Approach

摘要

Percutaneous endoscopic lumbar discectomy (PELD) is a minimally invasive spinal technique. The unique anatomic features of the L5–S1 space include a large facet joint, narrow foramen, small disc space, and a wide interlaminar space. PELD can be performed via 2 routes, transforaminal (TF-PELD) or interlaminar (IL-PELD). However, it is questionable that the decision of the endoscopic route for L5–S1 discs only depends on the surgeon’s preference and anatomic relation between iliac bone and disc space. Thus far, no study has compared TF-PELD with IL-PELD for L5–S1 disc herniation.