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Related Experiment Video

Updated: Oct 3, 2025

Full-Endoscopic Transforaminal Approach for Lumbar Discectomy
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Full endoscopic versus open discectomy for sciatica: randomised controlled non-inferiority trial.

Pravesh S Gadjradj1,2, Sidney M Rubinstein3, Wilco C Peul4

  • 1Department of Neurosurgery, Erasmus MC University Medical Center Rotterdam, Rotterdam, Netherlands.

BMJ (Clinical Research Ed.)
|February 22, 2022
PubMed
Summary

Percutaneous transforaminal endoscopic discectomy (PTED) is as effective as open microdiscectomy for reducing leg pain from lumbar disc herniation. PTED offers faster recovery and better outcomes for pain, function, and quality of life.

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Area of Science:

  • Neurosurgery
  • Minimally Invasive Spine Surgery

Background:

  • Lumbar disc herniation frequently causes radiating leg pain (sciatica).
  • Conventional open microdiscectomy is a standard surgical treatment.
  • Percutaneous transforaminal endoscopic discectomy (PTED) is a minimally invasive alternative.

Purpose of the Study:

  • To determine if PTED is non-inferior to open microdiscectomy in alleviating leg pain.
  • To compare secondary outcomes including complications, functional status, and quality of life.

Main Methods:

  • A multicentre, randomized controlled trial with a non-inferiority design was conducted.
  • 613 patients with lumbar disc herniation and leg pain were randomized to PTED (n=179) or open microdiscectomy (n=309).
  • Primary outcome was leg pain reduction (0-100 VAS) at 12 months; PTED learning curve patients were excluded from primary analysis.

Main Results:

  • PTED was non-inferior to open microdiscectomy for leg pain reduction (VAS difference 7.1).
  • PTED group showed significantly less blood loss, shorter hospital stays, and earlier mobilization.
  • Secondary outcomes favored PTED, including improved Oswestry Disability Index, back pain, quality of life, and recovery.

Conclusions:

  • PTED is a non-inferior and effective alternative to open microdiscectomy for sciatica.
  • PTED demonstrates advantages in patient recovery and reported outcomes.
  • While differences were small, PTED offers a favorable option for treating lumbar disc herniation.