Percutaneous Endoscopic Lumbar Discectomy for Recurrent Disc Herniation: Surgical Technique, Outcome, and Prognostic Factors of 43 Consecutive Cases

Percutaneous endoscopic lumbar discectomy is effective for recurrent disc herniation in selected cases. The posterolateral approach through unscarred virgin tissue can prevent nerve injury and could preserve the spinal stability. Both foraminal and intracanalicular portions can be decompressed simultaneously.