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Related Experiment Video

Updated: May 23, 2026

Transforaminal Full-Endoscopic Lumbar Foraminotomy Under Local Anesthesia for L5/S1 Adjacent Segment Foraminal Stenosis
07:44

Transforaminal Full-Endoscopic Lumbar Foraminotomy Under Local Anesthesia for L5/S1 Adjacent Segment Foraminal Stenosis

Published on: October 17, 2025

[Surgical method for lumbar foraminal stenosis].

Mikinobu Takeuchi1, Muneyoshi Yasuda, Hiroshi Shima

  • 1Department of Neurosurgery, Aichi Medical Hospital, Nagakutecity, Aichi, Japan.

No Shinkei Geka. Neurological Surgery
|April 3, 2012
PubMed
Summary

This study presents a minimally invasive surgical technique for lumbar foraminal stenosis, achieving excellent outcomes without fusion. The Wiltse approach effectively decompressed stenosis, improving patient scores and preventing recurrence.

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Area of Science:

  • Neurosurgery
  • Orthopedic Surgery
  • Spinal Surgery

Background:

  • Lumbar foraminal stenosis presents surgical challenges with debated treatment indications.
  • Current options include simple decompression or decompression with fixation.

Purpose of the Study:

  • To present a specific surgical method for lumbar foraminal stenosis.
  • To evaluate the outcomes of this novel surgical approach.

Main Methods:

  • Six patients with lumbar foraminal stenosis underwent decompression via a paramedian Wiltse approach.
  • The procedure involved removing part of the superior articular facet and transforaminal ligament, without fixation.
  • Outcomes were assessed using Japanese Orthopaedic Association (JOA) and Visual Analogue Scale (VAS) scores, with radiological follow-up.

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Last Updated: May 23, 2026

Transforaminal Full-Endoscopic Lumbar Foraminotomy Under Local Anesthesia for L5/S1 Adjacent Segment Foraminal Stenosis
07:44

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Published on: October 17, 2025

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Percutaneous Endoscopic Unilateral-Approach Bilateral Decompression for Lumbar Spinal Stenosis

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The Third Channel-Assisted Unilateral Biportal Endoscopic Technique for Lumbar Spinal Stenosis Combined with Contralateral Disc Herniation
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The Third Channel-Assisted Unilateral Biportal Endoscopic Technique for Lumbar Spinal Stenosis Combined with Contralateral Disc Herniation

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Main Results:

  • Successful decompression of foraminal stenosis in all cases.
  • Significant improvements in postoperative JOA and VAS scores (74.9% and 85.8% recovery rates).
  • No recurrence of symptoms, need for revision surgery, or radiological signs of instability.

Conclusions:

  • The described paramedian Wiltse approach for lumbar foraminal stenosis is effective.
  • This technique, involving facet and ligament decompression without fusion, yields good outcomes.
  • Long-term follow-up showed no recurrence, supporting its efficacy.